Home / 39,874,078.20-55,026,277.13-21,539,363.70

Finding the Fourth Proportional to 39,874,078.20, 55,026,277.13 and 21,539,363.70

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Solution

The fourth proportional to 39,874,078.20, 55,026,277.13 and 21,539,363.70 is: 29,724,348.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,874,078.20 : 55,026,277.13 = 21,539,363.70 : x
  2. Step 2: Convert to fraction form
    39,874,078.20/55,026,277.13 = 21,539,363.70/x
  3. Step 3: Cross multiply
    39,874,078.20x = 55,026,277.13 × 21,539,363.70
  4. Step 4: Simplify right side
    39,874,078.20x = 1,185,230,996,160,062.25
  5. Step 5: Solve for x
    x = 1,185,230,996,160,062.25/39,874,078.20
  6. Step 6: Final answer
    x = 29,724,348.49

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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.