Home / 252,352,890.20-378,380,036.10-131,420,538.20

Finding the Fourth Proportional to 252,352,890.20, 378,380,036.10 and 131,420,538.20

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Solution

The fourth proportional to 252,352,890.20, 378,380,036.10 and 131,420,538.20 is: 197,053,055.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,352,890.20 : 378,380,036.10 = 131,420,538.20 : x
  2. Step 2: Convert to fraction form
    252,352,890.20/378,380,036.10 = 131,420,538.20/x
  3. Step 3: Cross multiply
    252,352,890.20x = 378,380,036.10 × 131,420,538.20
  4. Step 4: Simplify right side
    252,352,890.20x = 49,726,907,988,397,432
  5. Step 5: Solve for x
    x = 49,726,907,988,397,432/252,352,890.20
  6. Step 6: Final answer
    x = 197,053,055.14

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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.