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Finding the Fourth Proportional to 18,240,807.25, 25,172,634.77 and 9,981,592.03

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Solution

The fourth proportional to 18,240,807.25, 25,172,634.77 and 9,981,592.03 is: 13,774,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240,807.25 : 25,172,634.77 = 9,981,592.03 : x
  2. Step 2: Convert to fraction form
    18,240,807.25/25,172,634.77 = 9,981,592.03/x
  3. Step 3: Cross multiply
    18,240,807.25x = 25,172,634.77 × 9,981,592.03
  4. Step 4: Simplify right side
    18,240,807.25x = 251,262,970,594,332.88
  5. Step 5: Solve for x
    x = 251,262,970,594,332.88/18,240,807.25
  6. Step 6: Final answer
    x = 13,774,772.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.