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Finding the Fourth Proportional to 71,293,472.80, 106,940,209.20 and 17,440,784.80

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Solution

The fourth proportional to 71,293,472.80, 106,940,209.20 and 17,440,784.80 is: 26,161,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,293,472.80 : 106,940,209.20 = 17,440,784.80 : x
  2. Step 2: Convert to fraction form
    71,293,472.80/106,940,209.20 = 17,440,784.80/x
  3. Step 3: Cross multiply
    71,293,472.80x = 106,940,209.20 × 17,440,784.80
  4. Step 4: Simplify right side
    71,293,472.80x = 1,865,121,175,124,180.25
  5. Step 5: Solve for x
    x = 1,865,121,175,124,180.25/71,293,472.80
  6. Step 6: Final answer
    x = 26,161,177.20

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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.