Home / 129,694,822.64-178,955,193.24-73,937,869.04

Finding the Fourth Proportional to 129,694,822.64, 178,955,193.24 and 73,937,869.04

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Solution

The fourth proportional to 129,694,822.64, 178,955,193.24 and 73,937,869.04 is: 102,020,769.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,694,822.64 : 178,955,193.24 = 73,937,869.04 : x
  2. Step 2: Convert to fraction form
    129,694,822.64/178,955,193.24 = 73,937,869.04/x
  3. Step 3: Cross multiply
    129,694,822.64x = 178,955,193.24 × 73,937,869.04
  4. Step 4: Simplify right side
    129,694,822.64x = 13,231,565,641,807,016
  5. Step 5: Solve for x
    x = 13,231,565,641,807,016/129,694,822.64
  6. Step 6: Final answer
    x = 102,020,769.78

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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.