To simplify \(((\frac{1}{6})^3)^3\) using the Power Rule of Exponents, we can apply the rule that states \((a^m)^n = a^{m \cdot n}\).
Here, \(a = \frac{1}{6}\), \(m = 3\), and \(n = 3\).
So, we have:
\[ ((\frac{1}{6})^3)^3 = (\frac{1}{6})^{3 \cdot 3} = (\frac{1}{6})^{9} \]
Thus, the exponent in the equivalent form is 9.