Home / 12,417,780.29-17,121,872.29-8,499,428.11

Finding the Fourth Proportional to 12,417,780.29, 17,121,872.29 and 8,499,428.11

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Solution

The fourth proportional to 12,417,780.29, 17,121,872.29 and 8,499,428.11 is: 11,719,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417,780.29 : 17,121,872.29 = 8,499,428.11 : x
  2. Step 2: Convert to fraction form
    12,417,780.29/17,121,872.29 = 8,499,428.11/x
  3. Step 3: Cross multiply
    12,417,780.29x = 17,121,872.29 × 8,499,428.11
  4. Step 4: Simplify right side
    12,417,780.29x = 145,526,122,509,349.59
  5. Step 5: Solve for x
    x = 145,526,122,509,349.59/12,417,780.29
  6. Step 6: Final answer
    x = 11,719,173.56

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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.