Home / 664,437,376.60-996,656,064.90-319,307,781.40

Finding the Fourth Proportional to 664,437,376.60, 996,656,064.90 and 319,307,781.40

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Solution

The fourth proportional to 664,437,376.60, 996,656,064.90 and 319,307,781.40 is: 478,961,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,437,376.60 : 996,656,064.90 = 319,307,781.40 : x
  2. Step 2: Convert to fraction form
    664,437,376.60/996,656,064.90 = 319,307,781.40/x
  3. Step 3: Cross multiply
    664,437,376.60x = 996,656,064.90 × 319,307,781.40
  4. Step 4: Simplify right side
    664,437,376.60x = 318,240,036,902,073,408
  5. Step 5: Solve for x
    x = 318,240,036,902,073,408/664,437,376.60
  6. Step 6: Final answer
    x = 478,961,672.10

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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.