Home / 664,306,381.80-996,743,007.90-319,082,308.20

Finding the Fourth Proportional to 664,306,381.80, 996,743,007.90 and 319,082,308.20

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Solution

The fourth proportional to 664,306,381.80, 996,743,007.90 and 319,082,308.20 is: 478,759,603.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,306,381.80 : 996,743,007.90 = 319,082,308.20 : x
  2. Step 2: Convert to fraction form
    664,306,381.80/996,743,007.90 = 319,082,308.20/x
  3. Step 3: Cross multiply
    664,306,381.80x = 996,743,007.90 × 319,082,308.20
  4. Step 4: Simplify right side
    664,306,381.80x = 318,043,059,642,942,784
  5. Step 5: Solve for x
    x = 318,043,059,642,942,784/664,306,381.80
  6. Step 6: Final answer
    x = 478,759,603.03

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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.