Home / 132,981,981.60-199,472,972.40-81,963,645.60

Finding the Fourth Proportional to 132,981,981.60, 199,472,972.40 and 81,963,645.60

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Solution

The fourth proportional to 132,981,981.60, 199,472,972.40 and 81,963,645.60 is: 122,945,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,981,981.60 : 199,472,972.40 = 81,963,645.60 : x
  2. Step 2: Convert to fraction form
    132,981,981.60/199,472,972.40 = 81,963,645.60/x
  3. Step 3: Cross multiply
    132,981,981.60x = 199,472,972.40 × 81,963,645.60
  4. Step 4: Simplify right side
    132,981,981.60x = 16,349,532,016,572,180
  5. Step 5: Solve for x
    x = 16,349,532,016,572,180/132,981,981.60
  6. Step 6: Final answer
    x = 122,945,468.40

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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.