Home / 6,399,770.20-9,601,037.70-1,912,499.80

Finding the Fourth Proportional to 6,399,770.20, 9,601,037.70 and 1,912,499.80

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Solution

The fourth proportional to 6,399,770.20, 9,601,037.70 and 1,912,499.80 is: 2,869,162.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399,770.20 : 9,601,037.70 = 1,912,499.80 : x
  2. Step 2: Convert to fraction form
    6,399,770.20/9,601,037.70 = 1,912,499.80/x
  3. Step 3: Cross multiply
    6,399,770.20x = 9,601,037.70 × 1,912,499.80
  4. Step 4: Simplify right side
    6,399,770.20x = 18,361,982,681,042.46
  5. Step 5: Solve for x
    x = 18,361,982,681,042.46/6,399,770.20
  6. Step 6: Final answer
    x = 2,869,162.81

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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.