Home / 90,923,540.80-125,478,965.28-51,766,093.12

Finding the Fourth Proportional to 90,923,540.80, 125,478,965.28 and 51,766,093.12

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Solution

The fourth proportional to 90,923,540.80, 125,478,965.28 and 51,766,093.12 is: 71,439,758.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,923,540.80 : 125,478,965.28 = 51,766,093.12 : x
  2. Step 2: Convert to fraction form
    90,923,540.80/125,478,965.28 = 51,766,093.12/x
  3. Step 3: Cross multiply
    90,923,540.80x = 125,478,965.28 × 51,766,093.12
  4. Step 4: Simplify right side
    90,923,540.80x = 6,495,555,801,285,727
  5. Step 5: Solve for x
    x = 6,495,555,801,285,727/90,923,540.80
  6. Step 6: Final answer
    x = 71,439,758.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.