Home / 20,646,493.20-30,993,359.40-12,131,627.40

Finding the Fourth Proportional to 20,646,493.20, 30,993,359.40 and 12,131,627.40

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Solution

The fourth proportional to 20,646,493.20, 30,993,359.40 and 12,131,627.40 is: 18,211,319.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646,493.20 : 30,993,359.40 = 12,131,627.40 : x
  2. Step 2: Convert to fraction form
    20,646,493.20/30,993,359.40 = 12,131,627.40/x
  3. Step 3: Cross multiply
    20,646,493.20x = 30,993,359.40 × 12,131,627.40
  4. Step 4: Simplify right side
    20,646,493.20x = 375,999,888,115,087.56
  5. Step 5: Solve for x
    x = 375,999,888,115,087.56/20,646,493.20
  6. Step 6: Final answer
    x = 18,211,319.69

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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.