Home / 20,760,234.30-31,140,351.45-12,115,460.70

Finding the Fourth Proportional to 20,760,234.30, 31,140,351.45 and 12,115,460.70

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Solution

The fourth proportional to 20,760,234.30, 31,140,351.45 and 12,115,460.70 is: 18,173,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,234.30 : 31,140,351.45 = 12,115,460.70 : x
  2. Step 2: Convert to fraction form
    20,760,234.30/31,140,351.45 = 12,115,460.70/x
  3. Step 3: Cross multiply
    20,760,234.30x = 31,140,351.45 × 12,115,460.70
  4. Step 4: Simplify right side
    20,760,234.30x = 377,279,704,176,663
  5. Step 5: Solve for x
    x = 377,279,704,176,663/20,760,234.30
  6. Step 6: Final answer
    x = 18,173,191.05

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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.