In Marvel comics T Challa aka The Black Panther as the king of Wakanda is estimated to be worth 90 trillion 9 x 1013 dollars Tony Stark aka Iron Man is only worth about 30 billion 3 x 1010 dollars If Tony Stark could somehow add a 10 increase in his wealth to his current worth each year 30 billion 63 billion 99 3 billion etc how many years would it take to reach T Challa Round your answer to the nearest year