Home / 664,439,408.10-996,659,112.15-319,309,812.90

Finding the Fourth Proportional to 664,439,408.10, 996,659,112.15 and 319,309,812.90

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Solution

The fourth proportional to 664,439,408.10, 996,659,112.15 and 319,309,812.90 is: 478,964,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,439,408.10 : 996,659,112.15 = 319,309,812.90 : x
  2. Step 2: Convert to fraction form
    664,439,408.10/996,659,112.15 = 319,309,812.90/x
  3. Step 3: Cross multiply
    664,439,408.10x = 996,659,112.15 × 319,309,812.90
  4. Step 4: Simplify right side
    664,439,408.10x = 318,243,034,625,696,576
  5. Step 5: Solve for x
    x = 318,243,034,625,696,576/664,439,408.10
  6. Step 6: Final answer
    x = 478,964,719.35

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1.5x scale

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.