Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_1682026_6 (rank INTEGER, assets__billion_$_ VARCHAR)
### Question:
What is the highest rank of a company that has 1,715.8 billion in assets? 
### Answer:
SELECT MAX(rank) FROM table_1682026_6 WHERE assets__billion_$_ = "1,715.8"