Finding the Fourth Proportional to 559,876,943.20, 839,815,414.80 and 534,367,775.20
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Solution
The fourth proportional to 559,876,943.20, 839,815,414.80 and 534,367,775.20 is: 801,551,662.80
Step by Step Solution
- Step 1: Write the proportion equation
559,876,943.20 : 839,815,414.80 = 534,367,775.20 : x - Step 2: Convert to fraction form
559,876,943.20/839,815,414.80 = 534,367,775.20/x - Step 3: Cross multiply
559,876,943.20x = 839,815,414.80 × 534,367,775.20 - Step 4: Simplify right side
559,876,943.20x = 448,770,294,785,341,120 - Step 5: Solve for x
x = 448,770,294,785,341,120/559,876,943.20 - Step 6: Final answer
x = 801,551,662.80
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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.