Home / 20,101,625.38-30,162,401.88-7,970,828.86

Finding the Fourth Proportional to 20,101,625.38, 30,162,401.88 and 7,970,828.86

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Solution

The fourth proportional to 20,101,625.38, 30,162,401.88 and 7,970,828.86 is: 11,960,194.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,625.38 : 30,162,401.88 = 7,970,828.86 : x
  2. Step 2: Convert to fraction form
    20,101,625.38/30,162,401.88 = 7,970,828.86/x
  3. Step 3: Cross multiply
    20,101,625.38x = 30,162,401.88 × 7,970,828.86
  4. Step 4: Simplify right side
    20,101,625.38x = 240,419,343,392,022.25
  5. Step 5: Solve for x
    x = 240,419,343,392,022.25/20,101,625.38
  6. Step 6: Final answer
    x = 11,960,194.21

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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.