Home / 34,120,156.20-51,180,234.30-21,206,139.90

Finding the Fourth Proportional to 34,120,156.20, 51,180,234.30 and 21,206,139.90

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Solution

The fourth proportional to 34,120,156.20, 51,180,234.30 and 21,206,139.90 is: 31,809,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,120,156.20 : 51,180,234.30 = 21,206,139.90 : x
  2. Step 2: Convert to fraction form
    34,120,156.20/51,180,234.30 = 21,206,139.90/x
  3. Step 3: Cross multiply
    34,120,156.20x = 51,180,234.30 × 21,206,139.90
  4. Step 4: Simplify right side
    34,120,156.20x = 1,085,335,208,680,578.38
  5. Step 5: Solve for x
    x = 1,085,335,208,680,578.38/34,120,156.20
  6. Step 6: Final answer
    x = 31,809,209.85

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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.