Finding the Fourth Proportional to 429,454,639.05, 644,133,717.81 and 118,606,445.97
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Solution
The fourth proportional to 429,454,639.05, 644,133,717.81 and 118,606,445.97 is: 177,896,345.86
Step by Step Solution
- Step 1: Write the proportion equation
429,454,639.05 : 644,133,717.81 = 118,606,445.97 : x - Step 2: Convert to fraction form
429,454,639.05/644,133,717.81 = 118,606,445.97/x - Step 3: Cross multiply
429,454,639.05x = 644,133,717.81 × 118,606,445.97 - Step 4: Simplify right side
429,454,639.05x = 76,398,410,998,886,992 - Step 5: Solve for x
x = 76,398,410,998,886,992/429,454,639.05 - Step 6: Final answer
x = 177,896,345.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.