Detailed Instructions: Given a sentence in Igbo language, translate the sentence to English language keeping the meaning of the original sentence intact
Q: Igbo sentence: Facebook CEO Mark Zuckerberg bụ ugbu a nke isii-kasị baa ọgaranya n'ụwa na-anọ-kasị baa ọgaranya na US, ya net uru kasị na nke ndọrọ ndọrọ ọchịchị na-akwanyere ùgwù Koch ụmụnna, dị ka Bloomberg Billionaires Index .
A:
Facebook CEO Mark Zuckerberg is now the sixth-richest person on Earth and the fourth-richest person in US, his net worth surpassing that of the politically influential Koch brothers, according to the Bloomberg Billionaires Index .