Home / 68,389,231.20-102,384,781.20-66,398,575.20

Finding the Fourth Proportional to 68,389,231.20, 102,384,781.20 and 66,398,575.20

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Solution

The fourth proportional to 68,389,231.20, 102,384,781.20 and 66,398,575.20 is: 99,404,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,389,231.20 : 102,384,781.20 = 66,398,575.20 : x
  2. Step 2: Convert to fraction form
    68,389,231.20/102,384,781.20 = 66,398,575.20/x
  3. Step 3: Cross multiply
    68,389,231.20x = 102,384,781.20 × 66,398,575.20
  4. Step 4: Simplify right side
    68,389,231.20x = 6,798,203,593,843,747
  5. Step 5: Solve for x
    x = 6,798,203,593,843,747/68,389,231.20
  6. Step 6: Final answer
    x = 99,404,591.55

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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.