Finding the Fourth Proportional to 157,398,236.46, 217,209,951.81 and 87,788,125.98
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Solution
The fourth proportional to 157,398,236.46, 217,209,951.81 and 87,788,125.98 is: 121,147,828.86
Step by Step Solution
- Step 1: Write the proportion equation
157,398,236.46 : 217,209,951.81 = 87,788,125.98 : x - Step 2: Convert to fraction form
157,398,236.46/217,209,951.81 = 87,788,125.98/x - Step 3: Cross multiply
157,398,236.46x = 217,209,951.81 × 87,788,125.98 - Step 4: Simplify right side
157,398,236.46x = 19,068,454,613,606,012 - Step 5: Solve for x
x = 19,068,454,613,606,012/157,398,236.46 - Step 6: Final answer
x = 121,147,828.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.