Finding the Fourth Proportional to 574,515,415.20, 861,773,122.80 and 399,163,504.80
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Solution
The fourth proportional to 574,515,415.20, 861,773,122.80 and 399,163,504.80 is: 598,745,257.20
Step by Step Solution
- Step 1: Write the proportion equation
574,515,415.20 : 861,773,122.80 = 399,163,504.80 : x - Step 2: Convert to fraction form
574,515,415.20/861,773,122.80 = 399,163,504.80/x - Step 3: Cross multiply
574,515,415.20x = 861,773,122.80 × 399,163,504.80 - Step 4: Simplify right side
574,515,415.20x = 343,988,380,039,288,768 - Step 5: Solve for x
x = 343,988,380,039,288,768/574,515,415.20 - Step 6: Final answer
x = 598,745,257.20
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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.