Home / 664,440,047.10-996,660,070.65-319,310,451.90

Finding the Fourth Proportional to 664,440,047.10, 996,660,070.65 and 319,310,451.90

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Solution

The fourth proportional to 664,440,047.10, 996,660,070.65 and 319,310,451.90 is: 478,965,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,440,047.10 : 996,660,070.65 = 319,310,451.90 : x
  2. Step 2: Convert to fraction form
    664,440,047.10/996,660,070.65 = 319,310,451.90/x
  3. Step 3: Cross multiply
    664,440,047.10x = 996,660,070.65 × 319,310,451.90
  4. Step 4: Simplify right side
    664,440,047.10x = 318,243,977,549,937,408
  5. Step 5: Solve for x
    x = 318,243,977,549,937,408/664,440,047.10
  6. Step 6: Final answer
    x = 478,965,677.85

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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.