Home / 129,457,447.29-178,693,851.74-103,044,251.25

Finding the Fourth Proportional to 129,457,447.29, 178,693,851.74 and 103,044,251.25

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Solution

The fourth proportional to 129,457,447.29, 178,693,851.74 and 103,044,251.25 is: 142,234,954.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,457,447.29 : 178,693,851.74 = 103,044,251.25 : x
  2. Step 2: Convert to fraction form
    129,457,447.29/178,693,851.74 = 103,044,251.25/x
  3. Step 3: Cross multiply
    129,457,447.29x = 178,693,851.74 × 103,044,251.25
  4. Step 4: Simplify right side
    129,457,447.29x = 18,413,374,155,011,588
  5. Step 5: Solve for x
    x = 18,413,374,155,011,588/129,457,447.29
  6. Step 6: Final answer
    x = 142,234,954.73

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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.