Home / 20,188,115.30-30,286,109.55-8,673,560.30

Finding the Fourth Proportional to 20,188,115.30, 30,286,109.55 and 8,673,560.30

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Solution

The fourth proportional to 20,188,115.30, 30,286,109.55 and 8,673,560.30 is: 13,012,031.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,115.30 : 30,286,109.55 = 8,673,560.30 : x
  2. Step 2: Convert to fraction form
    20,188,115.30/30,286,109.55 = 8,673,560.30/x
  3. Step 3: Cross multiply
    20,188,115.30x = 30,286,109.55 × 8,673,560.30
  4. Step 4: Simplify right side
    20,188,115.30x = 262,688,397,434,330.91
  5. Step 5: Solve for x
    x = 262,688,397,434,330.91/20,188,115.30
  6. Step 6: Final answer
    x = 13,012,031.76

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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.