Finding the Fourth Proportional to 679,966,294.20, 1,019,949,441.30 and 532,013,119.80
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Solution
The fourth proportional to 679,966,294.20, 1,019,949,441.30 and 532,013,119.80 is: 798,019,679.70
Step by Step Solution
- Step 1: Write the proportion equation
679,966,294.20 : 1,019,949,441.30 = 532,013,119.80 : x - Step 2: Convert to fraction form
679,966,294.20/1,019,949,441.30 = 532,013,119.80/x - Step 3: Cross multiply
679,966,294.20x = 1,019,949,441.30 × 532,013,119.80 - Step 4: Simplify right side
679,966,294.20x = 542,626,484,304,279,936 - Step 5: Solve for x
x = 542,626,484,304,279,936/679,966,294.20 - Step 6: Final answer
x = 798,019,679.70
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Double scale
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1.5x scale
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.