Home / 20,199,391.20-30,299,086.80-13,822,099.20

Finding the Fourth Proportional to 20,199,391.20, 30,299,086.80 and 13,822,099.20

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Solution

The fourth proportional to 20,199,391.20, 30,299,086.80 and 13,822,099.20 is: 20,733,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,391.20 : 30,299,086.80 = 13,822,099.20 : x
  2. Step 2: Convert to fraction form
    20,199,391.20/30,299,086.80 = 13,822,099.20/x
  3. Step 3: Cross multiply
    20,199,391.20x = 30,299,086.80 × 13,822,099.20
  4. Step 4: Simplify right side
    20,199,391.20x = 418,796,983,419,010.56
  5. Step 5: Solve for x
    x = 418,796,983,419,010.56/20,199,391.20
  6. Step 6: Final answer
    x = 20,733,148.80

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1.5x scale

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.