Home / 38,711,815.92-53,420,272.74-21,304,834.11

Finding the Fourth Proportional to 38,711,815.92, 53,420,272.74 and 21,304,834.11

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Solution

The fourth proportional to 38,711,815.92, 53,420,272.74 and 21,304,834.11 is: 29,399,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,711,815.92 : 53,420,272.74 = 21,304,834.11 : x
  2. Step 2: Convert to fraction form
    38,711,815.92/53,420,272.74 = 21,304,834.11/x
  3. Step 3: Cross multiply
    38,711,815.92x = 53,420,272.74 × 21,304,834.11
  4. Step 4: Simplify right side
    38,711,815.92x = 1,138,110,048,836,655.25
  5. Step 5: Solve for x
    x = 1,138,110,048,836,655.25/38,711,815.92
  6. Step 6: Final answer
    x = 29,399,552.10

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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.