Finding the Fourth Proportional to 516,515,975.44, 712,766,284.68 and 293,468,194.96
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Solution
The fourth proportional to 516,515,975.44, 712,766,284.68 and 293,468,194.96 is: 404,971,472.21
Step by Step Solution
- Step 1: Write the proportion equation
516,515,975.44 : 712,766,284.68 = 293,468,194.96 : x - Step 2: Convert to fraction form
516,515,975.44/712,766,284.68 = 293,468,194.96/x - Step 3: Cross multiply
516,515,975.44x = 712,766,284.68 × 293,468,194.96 - Step 4: Simplify right side
516,515,975.44x = 209,174,234,993,385,056 - Step 5: Solve for x
x = 209,174,234,993,385,056/516,515,975.44 - Step 6: Final answer
x = 404,971,472.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.