Home / 7,981,731.30-11,969,490.96-2,589,077.70

Finding the Fourth Proportional to 7,981,731.30, 11,969,490.96 and 2,589,077.70

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Solution

The fourth proportional to 7,981,731.30, 11,969,490.96 and 2,589,077.70 is: 3,882,609.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,731.30 : 11,969,490.96 = 2,589,077.70 : x
  2. Step 2: Convert to fraction form
    7,981,731.30/11,969,490.96 = 2,589,077.70/x
  3. Step 3: Cross multiply
    7,981,731.30x = 11,969,490.96 × 2,589,077.70
  4. Step 4: Simplify right side
    7,981,731.30x = 30,989,942,124,887.60
  5. Step 5: Solve for x
    x = 30,989,942,124,887.60/7,981,731.30
  6. Step 6: Final answer
    x = 3,882,609.04

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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.