Finding the Fourth Proportional to 12,366,926.10, 18,541,531.80 and 5,174,757.90
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Solution
The fourth proportional to 12,366,926.10, 18,541,531.80 and 5,174,757.90 is: 7,758,430.62
Step by Step Solution
- Step 1: Write the proportion equation
12,366,926.10 : 18,541,531.80 = 5,174,757.90 : x - Step 2: Convert to fraction form
12,366,926.10/18,541,531.80 = 5,174,757.90/x - Step 3: Cross multiply
12,366,926.10x = 18,541,531.80 × 5,174,757.90 - Step 4: Simplify right side
12,366,926.10x = 95,947,938,160,151.23 - Step 5: Solve for x
x = 95,947,938,160,151.23/12,366,926.10 - Step 6: Final answer
x = 7,758,430.62
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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.