Home / 664,306,375.30-996,742,998.15-319,082,301.70

Finding the Fourth Proportional to 664,306,375.30, 996,742,998.15 and 319,082,301.70

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Solution

The fourth proportional to 664,306,375.30, 996,742,998.15 and 319,082,301.70 is: 478,759,593.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,306,375.30 : 996,742,998.15 = 319,082,301.70 : x
  2. Step 2: Convert to fraction form
    664,306,375.30/996,742,998.15 = 319,082,301.70/x
  3. Step 3: Cross multiply
    664,306,375.30x = 996,742,998.15 × 319,082,301.70
  4. Step 4: Simplify right side
    664,306,375.30x = 318,043,050,053,060,800
  5. Step 5: Solve for x
    x = 318,043,050,053,060,800/664,306,375.30
  6. Step 6: Final answer
    x = 478,759,593.28

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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.