Home / 28,489,591.26-39,315,670.68-15,436,839.88

Finding the Fourth Proportional to 28,489,591.26, 39,315,670.68 and 15,436,839.88

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Solution

The fourth proportional to 28,489,591.26, 39,315,670.68 and 15,436,839.88 is: 21,302,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489,591.26 : 39,315,670.68 = 15,436,839.88 : x
  2. Step 2: Convert to fraction form
    28,489,591.26/39,315,670.68 = 15,436,839.88/x
  3. Step 3: Cross multiply
    28,489,591.26x = 39,315,670.68 × 15,436,839.88
  4. Step 4: Simplify right side
    28,489,591.26x = 606,909,713,061,970.75
  5. Step 5: Solve for x
    x = 606,909,713,061,970.75/28,489,591.26
  6. Step 6: Final answer
    x = 21,302,857.86

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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.