Home / 129,457,377.28-178,693,755.24-103,044,181.38

Finding the Fourth Proportional to 129,457,377.28, 178,693,755.24 and 103,044,181.38

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Solution

The fourth proportional to 129,457,377.28, 178,693,755.24 and 103,044,181.38 is: 142,234,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,457,377.28 : 178,693,755.24 = 103,044,181.38 : x
  2. Step 2: Convert to fraction form
    129,457,377.28/178,693,755.24 = 103,044,181.38/x
  3. Step 3: Cross multiply
    129,457,377.28x = 178,693,755.24 × 103,044,181.38
  4. Step 4: Simplify right side
    129,457,377.28x = 18,413,351,726,423,884
  5. Step 5: Solve for x
    x = 18,413,351,726,423,884/129,457,377.28
  6. Step 6: Final answer
    x = 142,234,858.40

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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.