14. (5 points)
The number of golden monkeys on the Monkey Mountain is $\frac{4}{7}$ of the number of long-tailed monkeys. After a few years, the number of golden monkeys becomes twice the original, and the number of long-tailed monkeys increases by 24. The number of golden monkeys is $\frac{4}{5}$ of the number of long-tailed monkeys, and at this time, the number of golden monkeys is $\qquad$ .
$64$