1992 AIME Problems/Problem 14

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Problem

In triangle $ABC^{}_{}$, $\displaystyle A'$, $\displaystyle B'$, and $\displaystyle C'$ are on the sides $\displaystyle BC$, $AC^{}_{}$, and $AB^{}_{}$, respectively. Given that $\displaystyle AA'$, $\displaystyle BB'$, and $\displaystyle CC'$ are concurrent at the point $O^{}_{}$, and that $\frac{AO^{}_{}}{OA'}+\frac{BO}{OB'}+\frac{CO}{OC'}=92$, find $\frac{AO}{OA'}\cdot \frac{BO}{OB'}\cdot \frac{CO}{OC'}$.

Solution

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See also