Finding the Fourth Proportional to 870,982,689.60, 1,306,474,034.40 and 580,745,044.80
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Solution
The fourth proportional to 870,982,689.60, 1,306,474,034.40 and 580,745,044.80 is: 871,117,567.20
Step by Step Solution
- Step 1: Write the proportion equation
870,982,689.60 : 1,306,474,034.40 = 580,745,044.80 : x - Step 2: Convert to fraction form
870,982,689.60/1,306,474,034.40 = 580,745,044.80/x - Step 3: Cross multiply
870,982,689.60x = 1,306,474,034.40 × 580,745,044.80 - Step 4: Simplify right side
870,982,689.60x = 758,728,321,637,664,768 - Step 5: Solve for x
x = 758,728,321,637,664,768/870,982,689.60 - Step 6: Final answer
x = 871,117,567.20
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Double scale
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Similar ratio
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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.