Home / 132,981,921.60-199,472,882.40-81,963,585.60

Finding the Fourth Proportional to 132,981,921.60, 199,472,882.40 and 81,963,585.60

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Solution

The fourth proportional to 132,981,921.60, 199,472,882.40 and 81,963,585.60 is: 122,945,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,981,921.60 : 199,472,882.40 = 81,963,585.60 : x
  2. Step 2: Convert to fraction form
    132,981,921.60/199,472,882.40 = 81,963,585.60/x
  3. Step 3: Cross multiply
    132,981,921.60x = 199,472,882.40 × 81,963,585.60
  4. Step 4: Simplify right side
    132,981,921.60x = 16,349,512,671,471,132
  5. Step 5: Solve for x
    x = 16,349,512,671,471,132/132,981,921.60
  6. Step 6: Final answer
    x = 122,945,378.40

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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.