What exactly is required for a Ghanian resident to obtain a passport and visa to the U.S.A. And Their related costs for each item

Only a few hundred dollars but...

Is this someone you met online? Are they telling you they love you and want to be with you? Are they asking for or hinting that they would be with you if they could only afford a visa/passport/plane tickets? If so, you're probably being scammed.

Be sure to read this --

Romance Scams | Embassy of the United States Accra, Ghana