Finding the Fourth Proportional to 7,050,649.60, 9,731,665.92 and 3,996,686.08
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Solution
The fourth proportional to 7,050,649.60, 9,731,665.92 and 3,996,686.08 is: 5,516,429.82
Step by Step Solution
- Step 1: Write the proportion equation
7,050,649.60 : 9,731,665.92 = 3,996,686.08 : x - Step 2: Convert to fraction form
7,050,649.60/9,731,665.92 = 3,996,686.08/x - Step 3: Cross multiply
7,050,649.60x = 9,731,665.92 × 3,996,686.08 - Step 4: Simplify right side
7,050,649.60x = 38,894,413,717,674.39 - Step 5: Solve for x
x = 38,894,413,717,674.39/7,050,649.60 - Step 6: Final answer
x = 5,516,429.82
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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.