Finding the Fourth Proportional to 627,817,357.69, 866,331,640.79 and 363,517,189.12
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Solution
The fourth proportional to 627,817,357.69, 866,331,640.79 and 363,517,189.12 is: 501,621,114.88
Step by Step Solution
- Step 1: Write the proportion equation
627,817,357.69 : 866,331,640.79 = 363,517,189.12 : x - Step 2: Convert to fraction form
627,817,357.69/866,331,640.79 = 363,517,189.12/x - Step 3: Cross multiply
627,817,357.69x = 866,331,640.79 × 363,517,189.12 - Step 4: Simplify right side
627,817,357.69x = 314,926,442,905,698,304 - Step 5: Solve for x
x = 314,926,442,905,698,304/627,817,357.69 - Step 6: Final answer
x = 501,621,114.88
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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.