A study showed that there are 16 vehicles for every 10 households. How many vehicles are there for 107 million households?
\(16v........10h \\x......107.000.000h \\\\ x=\frac{16*107.000.000}{10} \\\\ x=16*10.700.000 \\\\ \boxed{x=171.200.000 \ vehicles}\)
There are 171,200,00 (171.2 million) vehicles for 107 million households.