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_24458 ( "Country" text, "Area (km\u00b2)" text, "Population (millions, 2011)" text, "GDP (PPP) (USD, per capita)" real, "GDP (nominal) (billions USD)" text, "HDI (2011)" text )

### Question ###
What is the population in millions for 2011 where the GDP (nominal) (billions USD) is 4?

### Accurate SQL ###

SELECT "Population (millions, 2011)" FROM table_24458 WHERE "GDP (nominal) (billions USD)" = '4'