The suggestion came about during an interview with the club's new vice-president, Fernando Tapias, who said Real will be hit by a penalty clause in the alledged 'pre-contract' arranged between former leader Ramon Calderon and Ronaldo's representative Jorge Mendes.
According to the Independent, Spanish radio station Cadena COPE asked Tapias if there was any truth in suggestions that Real would be forced to pay out if they failed to sign the Portuguese winger.
Tapias responded: "Yes.but that is not our fault. Ronaldo is a great player. I remember when I was last at the club and [Luis] Figo was here telling people about him.
"He is one of the best players in the world.
"That he has a special character and that the price is exorbitant is also true. Maybe Fifa should put a €50 million price cap on transfers."
Re-appointed president Florentino Perez has made no secret of his intentions to sign the world's biggest names this summer in a bid to see Real return to its Galacticos era, and Ronaldo has always been at the forefront of his plans.
In spite of the supposed £26 million penalty they face if a deal for Ronaldo falls through, Perez is confident negotiations will come to a successful conclusion by the end of this month.
With Kaka's move from AC Milan to the Spanish capital already said to be a done deal, when asked of the rest of his summer intentions, Perez said: "The best players in the world, the ones that have won the Fifa World Player of the Year award are Kaka and Cristiano Ronaldo - they are the players Real Madrid fans demand.
"We have to will to complete the transfer of Kaka, we are not nervous and I hope in a few days we will happily announce the deal.
"I have said Ronaldo does interest us. We have to resolve this and the other big signings in this month of June. In pain there are get out clauses. In many cases that eliminates negotiations.
"It seems in the case of Ronaldo he does have a get-out clause and it means if the player brings the money stipulated in the clause he can go."
Perez is also understood to have his eye on Franck Ribery and David Villa.