Home / 78,269,616.38-117,418,857.57-25,750,245.01

Finding the Fourth Proportional to 78,269,616.38, 117,418,857.57 and 25,750,245.01

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Solution

The fourth proportional to 78,269,616.38, 117,418,857.57 and 25,750,245.01 is: 38,630,115.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,269,616.38 : 117,418,857.57 = 25,750,245.01 : x
  2. Step 2: Convert to fraction form
    78,269,616.38/117,418,857.57 = 25,750,245.01/x
  3. Step 3: Cross multiply
    78,269,616.38x = 117,418,857.57 × 25,750,245.01
  4. Step 4: Simplify right side
    78,269,616.38x = 3,023,564,350,878,036
  5. Step 5: Solve for x
    x = 3,023,564,350,878,036/78,269,616.38
  6. Step 6: Final answer
    x = 38,630,115.88

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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.