Home / 325,690,810.40-488,536,215.60-261,120,728.90

Finding the Fourth Proportional to 325,690,810.40, 488,536,215.60 and 261,120,728.90

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Solution

The fourth proportional to 325,690,810.40, 488,536,215.60 and 261,120,728.90 is: 391,681,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,690,810.40 : 488,536,215.60 = 261,120,728.90 : x
  2. Step 2: Convert to fraction form
    325,690,810.40/488,536,215.60 = 261,120,728.90/x
  3. Step 3: Cross multiply
    325,690,810.40x = 488,536,215.60 × 261,120,728.90
  4. Step 4: Simplify right side
    325,690,810.40x = 127,566,932,711,519,552
  5. Step 5: Solve for x
    x = 127,566,932,711,519,552/325,690,810.40
  6. Step 6: Final answer
    x = 391,681,093.35

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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.