Home / 664,434,515.10-996,651,772.65-319,304,919.90

Finding the Fourth Proportional to 664,434,515.10, 996,651,772.65 and 319,304,919.90

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Solution

The fourth proportional to 664,434,515.10, 996,651,772.65 and 319,304,919.90 is: 478,957,379.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,434,515.10 : 996,651,772.65 = 319,304,919.90 : x
  2. Step 2: Convert to fraction form
    664,434,515.10/996,651,772.65 = 319,304,919.90/x
  3. Step 3: Cross multiply
    664,434,515.10x = 996,651,772.65 × 319,304,919.90
  4. Step 4: Simplify right side
    664,434,515.10x = 318,235,814,434,201,216
  5. Step 5: Solve for x
    x = 318,235,814,434,201,216/664,434,515.10
  6. Step 6: Final answer
    x = 478,957,379.85

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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.