Home / 53,981,719.20-80,972,578.80-40,429,973.70

Finding the Fourth Proportional to 53,981,719.20, 80,972,578.80 and 40,429,973.70

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Solution

The fourth proportional to 53,981,719.20, 80,972,578.80 and 40,429,973.70 is: 60,644,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,981,719.20 : 80,972,578.80 = 40,429,973.70 : x
  2. Step 2: Convert to fraction form
    53,981,719.20/80,972,578.80 = 40,429,973.70/x
  3. Step 3: Cross multiply
    53,981,719.20x = 80,972,578.80 × 40,429,973.70
  4. Step 4: Simplify right side
    53,981,719.20x = 3,273,719,231,305,177.50
  5. Step 5: Solve for x
    x = 3,273,719,231,305,177.50/53,981,719.20
  6. Step 6: Final answer
    x = 60,644,960.55

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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.