Home / 31,321,692.75-43,229,134.47-18,268,951.70

Finding the Fourth Proportional to 31,321,692.75, 43,229,134.47 and 18,268,951.70

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Solution

The fourth proportional to 31,321,692.75, 43,229,134.47 and 18,268,951.70 is: 25,214,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,321,692.75 : 43,229,134.47 = 18,268,951.70 : x
  2. Step 2: Convert to fraction form
    31,321,692.75/43,229,134.47 = 18,268,951.70/x
  3. Step 3: Cross multiply
    31,321,692.75x = 43,229,134.47 × 18,268,951.70
  4. Step 4: Simplify right side
    31,321,692.75x = 789,750,969,449,089.38
  5. Step 5: Solve for x
    x = 789,750,969,449,089.38/31,321,692.75
  6. Step 6: Final answer
    x = 25,214,185.44

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1.5x scale

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.