Finding the Fourth Proportional to 18,388,114.13, 25,375,596.30 and 10,657,640.49
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Solution
The fourth proportional to 18,388,114.13, 25,375,596.30 and 10,657,640.49 is: 14,707,543.17
Step by Step Solution
- Step 1: Write the proportion equation
18,388,114.13 : 25,375,596.30 = 10,657,640.49 : x - Step 2: Convert to fraction form
18,388,114.13/25,375,596.30 = 10,657,640.49/x - Step 3: Cross multiply
18,388,114.13x = 25,375,596.30 × 10,657,640.49 - Step 4: Simplify right side
18,388,114.13x = 270,443,982,489,615.72 - Step 5: Solve for x
x = 270,443,982,489,615.72/18,388,114.13 - Step 6: Final answer
x = 14,707,543.17
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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.