Finding the Fourth Proportional to 288,626,076.62, 432,895,371.05 and 78,553,132.65
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Solution
The fourth proportional to 288,626,076.62, 432,895,371.05 and 78,553,132.65 is: 117,817,793.54
Step by Step Solution
- Step 1: Write the proportion equation
288,626,076.62 : 432,895,371.05 = 78,553,132.65 : x - Step 2: Convert to fraction form
288,626,076.62/432,895,371.05 = 78,553,132.65/x - Step 3: Cross multiply
288,626,076.62x = 432,895,371.05 × 78,553,132.65 - Step 4: Simplify right side
288,626,076.62x = 34,005,287,505,858,004 - Step 5: Solve for x
x = 34,005,287,505,858,004/288,626,076.62 - Step 6: Final answer
x = 117,817,793.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.