Finding the Fourth Proportional to 7,128,657.18, 10,693,882.17 and 3,485,508.84
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Solution
The fourth proportional to 7,128,657.18, 10,693,882.17 and 3,485,508.84 is: 5,228,701.55
Step by Step Solution
- Step 1: Write the proportion equation
7,128,657.18 : 10,693,882.17 = 3,485,508.84 : x - Step 2: Convert to fraction form
7,128,657.18/10,693,882.17 = 3,485,508.84/x - Step 3: Cross multiply
7,128,657.18x = 10,693,882.17 × 3,485,508.84 - Step 4: Simplify right side
7,128,657.18x = 37,273,620,837,453.38 - Step 5: Solve for x
x = 37,273,620,837,453.38/7,128,657.18 - Step 6: Final answer
x = 5,228,701.55
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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.