Finding the Fourth Proportional to 711,414,431.20, 1,067,121,646.80 and 590,482,079.20
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Solution
The fourth proportional to 711,414,431.20, 1,067,121,646.80 and 590,482,079.20 is: 885,723,118.80
Step by Step Solution
- Step 1: Write the proportion equation
711,414,431.20 : 1,067,121,646.80 = 590,482,079.20 : x - Step 2: Convert to fraction form
711,414,431.20/1,067,121,646.80 = 590,482,079.20/x - Step 3: Cross multiply
711,414,431.20x = 1,067,121,646.80 × 590,482,079.20 - Step 4: Simplify right side
711,414,431.20x = 630,116,208,761,792,000 - Step 5: Solve for x
x = 630,116,208,761,792,000/711,414,431.20 - Step 6: Final answer
x = 885,723,118.80
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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.