Finding the Fourth Proportional to 9,195,508.92, 12,690,195.96 and 5,121,127.92
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Solution
The fourth proportional to 9,195,508.92, 12,690,195.96 and 5,121,127.92 is: 7,067,375.76
Step by Step Solution
- Step 1: Write the proportion equation
9,195,508.92 : 12,690,195.96 = 5,121,127.92 : x - Step 2: Convert to fraction form
9,195,508.92/12,690,195.96 = 5,121,127.92/x - Step 3: Cross multiply
9,195,508.92x = 12,690,195.96 × 5,121,127.92 - Step 4: Simplify right side
9,195,508.92x = 64,988,116,841,027.20 - Step 5: Solve for x
x = 64,988,116,841,027.20/9,195,508.92 - Step 6: Final answer
x = 7,067,375.76
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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.