Home / 39,278,466.40-54,205,965.24-21,874,811.60

Finding the Fourth Proportional to 39,278,466.40, 54,205,965.24 and 21,874,811.60

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Solution

The fourth proportional to 39,278,466.40, 54,205,965.24 and 21,874,811.60 is: 30,188,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278,466.40 : 54,205,965.24 = 21,874,811.60 : x
  2. Step 2: Convert to fraction form
    39,278,466.40/54,205,965.24 = 21,874,811.60/x
  3. Step 3: Cross multiply
    39,278,466.40x = 54,205,965.24 × 21,874,811.60
  4. Step 4: Simplify right side
    39,278,466.40x = 1,185,745,277,221,149
  5. Step 5: Solve for x
    x = 1,185,745,277,221,149/39,278,466.40
  6. Step 6: Final answer
    x = 30,188,176.52

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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.