Home / 129,457,376.28-178,693,753.86-103,044,180.38

Finding the Fourth Proportional to 129,457,376.28, 178,693,753.86 and 103,044,180.38

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Solution

The fourth proportional to 129,457,376.28, 178,693,753.86 and 103,044,180.38 is: 142,234,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,457,376.28 : 178,693,753.86 = 103,044,180.38 : x
  2. Step 2: Convert to fraction form
    129,457,376.28/178,693,753.86 = 103,044,180.38/x
  3. Step 3: Cross multiply
    129,457,376.28x = 178,693,753.86 × 103,044,180.38
  4. Step 4: Simplify right side
    129,457,376.28x = 18,413,351,404,635,692
  5. Step 5: Solve for x
    x = 18,413,351,404,635,692/129,457,376.28
  6. Step 6: Final answer
    x = 142,234,857.01

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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.