Home / 129,057,213.13-178,096,711.72-70,320,360.90

Finding the Fourth Proportional to 129,057,213.13, 178,096,711.72 and 70,320,360.90

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Solution

The fourth proportional to 129,057,213.13, 178,096,711.72 and 70,320,360.90 is: 97,040,876.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,057,213.13 : 178,096,711.72 = 70,320,360.90 : x
  2. Step 2: Convert to fraction form
    129,057,213.13/178,096,711.72 = 70,320,360.90/x
  3. Step 3: Cross multiply
    129,057,213.13x = 178,096,711.72 × 70,320,360.90
  4. Step 4: Simplify right side
    129,057,213.13x = 12,523,825,043,253,660
  5. Step 5: Solve for x
    x = 12,523,825,043,253,660/129,057,213.13
  6. Step 6: Final answer
    x = 97,040,876.21

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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.