Answer:
About the distance across the United States or 3800 km (23612 miles)
Step-by-step explanation:
[tex]\frac{x15.10^9}{3.8.10^16}\\\\[/tex] [tex]=\frac{15}{x}[/tex]
[tex]15x=\frac{57.10^16}{10^9}[/tex]
[tex]x=\frac{57.10^7}{15}[/tex]
x=3.8.[tex]10^7[/tex]