Home / 325,690,811.40-488,536,217.10-261,120,729.90

Finding the Fourth Proportional to 325,690,811.40, 488,536,217.10 and 261,120,729.90

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Solution

The fourth proportional to 325,690,811.40, 488,536,217.10 and 261,120,729.90 is: 391,681,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,690,811.40 : 488,536,217.10 = 261,120,729.90 : x
  2. Step 2: Convert to fraction form
    325,690,811.40/488,536,217.10 = 261,120,729.90/x
  3. Step 3: Cross multiply
    325,690,811.40x = 488,536,217.10 × 261,120,729.90
  4. Step 4: Simplify right side
    325,690,811.40x = 127,566,933,591,736,864
  5. Step 5: Solve for x
    x = 127,566,933,591,736,864/325,690,811.40
  6. Step 6: Final answer
    x = 391,681,094.85

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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.