Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_56 ( rank VARCHAR, revenue_in_usd VARCHAR )

### Question ###
What is the rank of the company who has a revenue of $428.2 billion?

### Accurate SQL ###

SELECT COUNT(rank) FROM table_name_56 WHERE revenue_in_usd = "$428.2 billion"