Finding the Fourth Proportional to 86,838,896.68, 119,839,391.34 and 47,680,330.84
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Solution
The fourth proportional to 86,838,896.68, 119,839,391.34 and 47,680,330.84 is: 65,799,797.62
Step by Step Solution
- Step 1: Write the proportion equation
86,838,896.68 : 119,839,391.34 = 47,680,330.84 : x - Step 2: Convert to fraction form
86,838,896.68/119,839,391.34 = 47,680,330.84/x - Step 3: Cross multiply
86,838,896.68x = 119,839,391.34 × 47,680,330.84 - Step 4: Simplify right side
86,838,896.68x = 5,713,981,826,755,432 - Step 5: Solve for x
x = 5,713,981,826,755,432/86,838,896.68 - Step 6: Final answer
x = 65,799,797.62
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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.