Home / 71,189,934.78-98,245,924.45-39,826,112.74

Finding the Fourth Proportional to 71,189,934.78, 98,245,924.45 and 39,826,112.74

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Solution

The fourth proportional to 71,189,934.78, 98,245,924.45 and 39,826,112.74 is: 54,962,169.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,189,934.78 : 98,245,924.45 = 39,826,112.74 : x
  2. Step 2: Convert to fraction form
    71,189,934.78/98,245,924.45 = 39,826,112.74/x
  3. Step 3: Cross multiply
    71,189,934.78x = 98,245,924.45 × 39,826,112.74
  4. Step 4: Simplify right side
    71,189,934.78x = 3,912,753,263,046,042.50
  5. Step 5: Solve for x
    x = 3,912,753,263,046,042.50/71,189,934.78
  6. Step 6: Final answer
    x = 54,962,169.51

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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.