Home / 129,839,174.12-194,770,733.87-42,401,149.38

Finding the Fourth Proportional to 129,839,174.12, 194,770,733.87 and 42,401,149.38

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Solution

The fourth proportional to 129,839,174.12, 194,770,733.87 and 42,401,149.38 is: 63,605,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,839,174.12 : 194,770,733.87 = 42,401,149.38 : x
  2. Step 2: Convert to fraction form
    129,839,174.12/194,770,733.87 = 42,401,149.38/x
  3. Step 3: Cross multiply
    129,839,174.12x = 194,770,733.87 × 42,401,149.38
  4. Step 4: Simplify right side
    129,839,174.12x = 8,258,502,981,293,171
  5. Step 5: Solve for x
    x = 8,258,502,981,293,171/129,839,174.12
  6. Step 6: Final answer
    x = 63,605,633.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.