Home / 252,195,421.25-378,279,679.74-67,959,939.43

Finding the Fourth Proportional to 252,195,421.25, 378,279,679.74 and 67,959,939.43

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Solution

The fourth proportional to 252,195,421.25, 378,279,679.74 and 67,959,939.43 is: 101,936,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,195,421.25 : 378,279,679.74 = 67,959,939.43 : x
  2. Step 2: Convert to fraction form
    252,195,421.25/378,279,679.74 = 67,959,939.43/x
  3. Step 3: Cross multiply
    252,195,421.25x = 378,279,679.74 × 67,959,939.43
  4. Step 4: Simplify right side
    252,195,421.25x = 25,707,864,122,948,200
  5. Step 5: Solve for x
    x = 25,707,864,122,948,200/252,195,421.25
  6. Step 6: Final answer
    x = 101,936,284.15

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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.