Home / 20,199,407.70-30,299,111.55-13,822,115.70

Finding the Fourth Proportional to 20,199,407.70, 30,299,111.55 and 13,822,115.70

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Solution

The fourth proportional to 20,199,407.70, 30,299,111.55 and 13,822,115.70 is: 20,733,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,407.70 : 30,299,111.55 = 13,822,115.70 : x
  2. Step 2: Convert to fraction form
    20,199,407.70/30,299,111.55 = 13,822,115.70/x
  3. Step 3: Cross multiply
    20,199,407.70x = 30,299,111.55 × 13,822,115.70
  4. Step 4: Simplify right side
    20,199,407.70x = 418,797,825,451,306.31
  5. Step 5: Solve for x
    x = 418,797,825,451,306.31/20,199,407.70
  6. Step 6: Final answer
    x = 20,733,173.55

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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.