Finding the Fourth Proportional to 841,232,515.17, 1,260,720,823.10 and 654,711,670.95
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Solution
The fourth proportional to 841,232,515.17, 1,260,720,823.10 and 654,711,670.95 is: 981,189,649.48
Step by Step Solution
- Step 1: Write the proportion equation
841,232,515.17 : 1,260,720,823.10 = 654,711,670.95 : x - Step 2: Convert to fraction form
841,232,515.17/1,260,720,823.10 = 654,711,670.95/x - Step 3: Cross multiply
841,232,515.17x = 1,260,720,823.10 × 654,711,670.95 - Step 4: Simplify right side
841,232,515.17x = 825,408,636,689,986,816 - Step 5: Solve for x
x = 825,408,636,689,986,816/841,232,515.17 - Step 6: Final answer
x = 981,189,649.48
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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.