Home / 132,981,941.85-199,472,912.78-81,963,605.85

Finding the Fourth Proportional to 132,981,941.85, 199,472,912.78 and 81,963,605.85

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Solution

The fourth proportional to 132,981,941.85, 199,472,912.78 and 81,963,605.85 is: 122,945,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,981,941.85 : 199,472,912.78 = 81,963,605.85 : x
  2. Step 2: Convert to fraction form
    132,981,941.85/199,472,912.78 = 81,963,605.85/x
  3. Step 3: Cross multiply
    132,981,941.85x = 199,472,912.78 × 81,963,605.85
  4. Step 4: Simplify right side
    132,981,941.85x = 16,349,519,200,441,530
  5. Step 5: Solve for x
    x = 16,349,519,200,441,530/132,981,941.85
  6. Step 6: Final answer
    x = 122,945,408.78

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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.