Home / 21,150,589-29,187,987.78-11,492,797

Finding the Fourth Proportional to 21,150,589, 29,187,987.78 and 11,492,797

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Solution

The fourth proportional to 21,150,589, 29,187,987.78 and 11,492,797 is: 15,860,154.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150,589 : 29,187,987.78 = 11,492,797 : x
  2. Step 2: Convert to fraction form
    21,150,589/29,187,987.78 = 11,492,797/x
  3. Step 3: Cross multiply
    21,150,589x = 29,187,987.78 × 11,492,797
  4. Step 4: Simplify right side
    21,150,589x = 335,451,618,394,020.69
  5. Step 5: Solve for x
    x = 335,451,618,394,020.69/21,150,589
  6. Step 6: Final answer
    x = 15,860,154.93

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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.