Home / 664,432,810.10-996,649,215.15-319,303,214.90

Finding the Fourth Proportional to 664,432,810.10, 996,649,215.15 and 319,303,214.90

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Solution

The fourth proportional to 664,432,810.10, 996,649,215.15 and 319,303,214.90 is: 478,954,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,432,810.10 : 996,649,215.15 = 319,303,214.90 : x
  2. Step 2: Convert to fraction form
    664,432,810.10/996,649,215.15 = 319,303,214.90/x
  3. Step 3: Cross multiply
    664,432,810.10x = 996,649,215.15 × 319,303,214.90
  4. Step 4: Simplify right side
    664,432,810.10x = 318,233,298,524,956,736
  5. Step 5: Solve for x
    x = 318,233,298,524,956,736/664,432,810.10
  6. Step 6: Final answer
    x = 478,954,822.35

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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.