Home / 12,762,981.28-17,619,418.11-9,855,845.92

Finding the Fourth Proportional to 12,762,981.28, 17,619,418.11 and 9,855,845.92

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Solution

The fourth proportional to 12,762,981.28, 17,619,418.11 and 9,855,845.92 is: 13,606,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762,981.28 : 17,619,418.11 = 9,855,845.92 : x
  2. Step 2: Convert to fraction form
    12,762,981.28/17,619,418.11 = 9,855,845.92/x
  3. Step 3: Cross multiply
    12,762,981.28x = 17,619,418.11 × 9,855,845.92
  4. Step 4: Simplify right side
    12,762,981.28x = 173,654,270,092,217.59
  5. Step 5: Solve for x
    x = 173,654,270,092,217.59/12,762,981.28
  6. Step 6: Final answer
    x = 13,606,089.85

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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.