Home / 71,082,367.92-106,627,540.32-19,960,400.88

Finding the Fourth Proportional to 71,082,367.92, 106,627,540.32 and 19,960,400.88

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Solution

The fourth proportional to 71,082,367.92, 106,627,540.32 and 19,960,400.88 is: 29,941,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,082,367.92 : 106,627,540.32 = 19,960,400.88 : x
  2. Step 2: Convert to fraction form
    71,082,367.92/106,627,540.32 = 19,960,400.88/x
  3. Step 3: Cross multiply
    71,082,367.92x = 106,627,540.32 × 19,960,400.88
  4. Step 4: Simplify right side
    71,082,367.92x = 2,128,328,449,635,563.25
  5. Step 5: Solve for x
    x = 2,128,328,449,635,563.25/71,082,367.92
  6. Step 6: Final answer
    x = 29,941,721.30

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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.