Home / 660,529,037.20-990,541,613.40-200,314,253.20

Finding the Fourth Proportional to 660,529,037.20, 990,541,613.40 and 200,314,253.20

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Solution

The fourth proportional to 660,529,037.20, 990,541,613.40 and 200,314,253.20 is: 300,394,974.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,529,037.20 : 990,541,613.40 = 200,314,253.20 : x
  2. Step 2: Convert to fraction form
    660,529,037.20/990,541,613.40 = 200,314,253.20/x
  3. Step 3: Cross multiply
    660,529,037.20x = 990,541,613.40 × 200,314,253.20
  4. Step 4: Simplify right side
    660,529,037.20x = 198,419,603,551,744,096
  5. Step 5: Solve for x
    x = 198,419,603,551,744,096/660,529,037.20
  6. Step 6: Final answer
    x = 300,394,974.90

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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.