Home / 28,546,839-39,394,681.11-15,494,102.69

Finding the Fourth Proportional to 28,546,839, 39,394,681.11 and 15,494,102.69

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Solution

The fourth proportional to 28,546,839, 39,394,681.11 and 15,494,102.69 is: 21,381,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546,839 : 39,394,681.11 = 15,494,102.69 : x
  2. Step 2: Convert to fraction form
    28,546,839/39,394,681.11 = 15,494,102.69/x
  3. Step 3: Cross multiply
    28,546,839x = 39,394,681.11 × 15,494,102.69
  4. Step 4: Simplify right side
    28,546,839x = 610,385,234,361,169.75
  5. Step 5: Solve for x
    x = 610,385,234,361,169.75/28,546,839
  6. Step 6: Final answer
    x = 21,381,885.20

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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.