Finding the Fourth Proportional to 1,034,216,425.60, 1,551,324,638.40 and 344,193,431.20
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Solution
The fourth proportional to 1,034,216,425.60, 1,551,324,638.40 and 344,193,431.20 is: 516,290,146.80
Step by Step Solution
- Step 1: Write the proportion equation
1,034,216,425.60 : 1,551,324,638.40 = 344,193,431.20 : x - Step 2: Convert to fraction form
1,034,216,425.60/1,551,324,638.40 = 344,193,431.20/x - Step 3: Cross multiply
1,034,216,425.60x = 1,551,324,638.40 × 344,193,431.20 - Step 4: Simplify right side
1,034,216,425.60x = 533,955,750,195,995,264 - Step 5: Solve for x
x = 533,955,750,195,995,264/1,034,216,425.60 - Step 6: Final answer
x = 516,290,146.80
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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.