Home / 490,002,003.90-735,003,005.85-379,037,123.10

Finding the Fourth Proportional to 490,002,003.90, 735,003,005.85 and 379,037,123.10

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Solution

The fourth proportional to 490,002,003.90, 735,003,005.85 and 379,037,123.10 is: 568,555,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,002,003.90 : 735,003,005.85 = 379,037,123.10 : x
  2. Step 2: Convert to fraction form
    490,002,003.90/735,003,005.85 = 379,037,123.10/x
  3. Step 3: Cross multiply
    490,002,003.90x = 735,003,005.85 × 379,037,123.10
  4. Step 4: Simplify right side
    490,002,003.90x = 278,593,424,807,236,512
  5. Step 5: Solve for x
    x = 278,593,424,807,236,512/490,002,003.90
  6. Step 6: Final answer
    x = 568,555,684.65

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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.