Home / 20,186,306.20-30,279,459.30-10,500,793.98

Finding the Fourth Proportional to 20,186,306.20, 30,279,459.30 and 10,500,793.98

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Solution

The fourth proportional to 20,186,306.20, 30,279,459.30 and 10,500,793.98 is: 15,751,190.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,306.20 : 30,279,459.30 = 10,500,793.98 : x
  2. Step 2: Convert to fraction form
    20,186,306.20/30,279,459.30 = 10,500,793.98/x
  3. Step 3: Cross multiply
    20,186,306.20x = 30,279,459.30 × 10,500,793.98
  4. Step 4: Simplify right side
    20,186,306.20x = 317,958,363,783,697.69
  5. Step 5: Solve for x
    x = 317,958,363,783,697.69/20,186,306.20
  6. Step 6: Final answer
    x = 15,751,190.96

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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.