Home / 31,321,734.40-43,229,188.44-18,268,992.95

Finding the Fourth Proportional to 31,321,734.40, 43,229,188.44 and 18,268,992.95

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Solution

The fourth proportional to 31,321,734.40, 43,229,188.44 and 18,268,992.95 is: 25,214,240.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,321,734.40 : 43,229,188.44 = 18,268,992.95 : x
  2. Step 2: Convert to fraction form
    31,321,734.40/43,229,188.44 = 18,268,992.95/x
  3. Step 3: Cross multiply
    31,321,734.40x = 43,229,188.44 × 18,268,992.95
  4. Step 4: Simplify right side
    31,321,734.40x = 789,753,738,628,435.50
  5. Step 5: Solve for x
    x = 789,753,738,628,435.50/31,321,734.40
  6. Step 6: Final answer
    x = 25,214,240.33

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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.