Home / 5,321,238.20-7,981,857.30-2,126,857.40

Finding the Fourth Proportional to 5,321,238.20, 7,981,857.30 and 2,126,857.40

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Solution

The fourth proportional to 5,321,238.20, 7,981,857.30 and 2,126,857.40 is: 3,190,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321,238.20 : 7,981,857.30 = 2,126,857.40 : x
  2. Step 2: Convert to fraction form
    5,321,238.20/7,981,857.30 = 2,126,857.40/x
  3. Step 3: Cross multiply
    5,321,238.20x = 7,981,857.30 × 2,126,857.40
  4. Step 4: Simplify right side
    5,321,238.20x = 16,976,272,264,249.02
  5. Step 5: Solve for x
    x = 16,976,272,264,249.02/5,321,238.20
  6. Step 6: Final answer
    x = 3,190,286.10

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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.