Home / 147,981,129.38-204,214,395.52-81,906,216.92

Finding the Fourth Proportional to 147,981,129.38, 204,214,395.52 and 81,906,216.92

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Solution

The fourth proportional to 147,981,129.38, 204,214,395.52 and 81,906,216.92 is: 113,030,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,981,129.38 : 204,214,395.52 = 81,906,216.92 : x
  2. Step 2: Convert to fraction form
    147,981,129.38/204,214,395.52 = 81,906,216.92/x
  3. Step 3: Cross multiply
    147,981,129.38x = 204,214,395.52 × 81,906,216.92
  4. Step 4: Simplify right side
    147,981,129.38x = 16,726,428,577,647,798
  5. Step 5: Solve for x
    x = 16,726,428,577,647,798/147,981,129.38
  6. Step 6: Final answer
    x = 113,030,821.21

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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.