Home / 18,021,726.56-27,033,850.78-8,921,380.72

Finding the Fourth Proportional to 18,021,726.56, 27,033,850.78 and 8,921,380.72

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Solution

The fourth proportional to 18,021,726.56, 27,033,850.78 and 8,921,380.72 is: 13,382,695.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021,726.56 : 27,033,850.78 = 8,921,380.72 : x
  2. Step 2: Convert to fraction form
    18,021,726.56/27,033,850.78 = 8,921,380.72/x
  3. Step 3: Cross multiply
    18,021,726.56x = 27,033,850.78 × 8,921,380.72
  4. Step 4: Simplify right side
    18,021,726.56x = 241,179,275,136,049
  5. Step 5: Solve for x
    x = 241,179,275,136,049/18,021,726.56
  6. Step 6: Final answer
    x = 13,382,695.29

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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.