Finding the Fourth Proportional to 71,951,715.74, 99,293,664.84 and 38,911,964.16
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Solution
The fourth proportional to 71,951,715.74, 99,293,664.84 and 38,911,964.16 is: 53,698,671.22
Step by Step Solution
- Step 1: Write the proportion equation
71,951,715.74 : 99,293,664.84 = 38,911,964.16 : x - Step 2: Convert to fraction form
71,951,715.74/99,293,664.84 = 38,911,964.16/x - Step 3: Cross multiply
71,951,715.74x = 99,293,664.84 × 38,911,964.16 - Step 4: Simplify right side
71,951,715.74x = 3,863,711,527,569,132 - Step 5: Solve for x
x = 3,863,711,527,569,132/71,951,715.74 - Step 6: Final answer
x = 53,698,671.22
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.