Home / 129,452,963.32-178,650,520.14-74,448,863.56

Finding the Fourth Proportional to 129,452,963.32, 178,650,520.14 and 74,448,863.56

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Solution

The fourth proportional to 129,452,963.32, 178,650,520.14 and 74,448,863.56 is: 102,742,554.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,452,963.32 : 178,650,520.14 = 74,448,863.56 : x
  2. Step 2: Convert to fraction form
    129,452,963.32/178,650,520.14 = 74,448,863.56/x
  3. Step 3: Cross multiply
    129,452,963.32x = 178,650,520.14 × 74,448,863.56
  4. Step 4: Simplify right side
    129,452,963.32x = 13,300,328,198,825,892
  5. Step 5: Solve for x
    x = 13,300,328,198,825,892/129,452,963.32
  6. Step 6: Final answer
    x = 102,742,554.96

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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.