You do realize you're pulling numbers out of your collective asses? China's growth has been nowhere near 20% in the past few years. It's been slowing down to the single digits. Last year it was 7.7%, down from 9.3%. It's growth is largely dependent on the US, when the US slows down, China slows down. You can't create wealth out of thin air without leeching it from someone else.

Edit: Either way China's GDP/capita was $5,445 for 2011, the US is $48,442. I fail to see how you can possibly reach around and pull millions out of your magic hat in a hundred years.