Home / 103,981,135.20-143,498,449.92-57,571,387.68

Finding the Fourth Proportional to 103,981,135.20, 143,498,449.92 and 57,571,387.68

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Solution

The fourth proportional to 103,981,135.20, 143,498,449.92 and 57,571,387.68 is: 79,450,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,981,135.20 : 143,498,449.92 = 57,571,387.68 : x
  2. Step 2: Convert to fraction form
    103,981,135.20/143,498,449.92 = 57,571,387.68/x
  3. Step 3: Cross multiply
    103,981,135.20x = 143,498,449.92 × 57,571,387.68
  4. Step 4: Simplify right side
    103,981,135.20x = 8,261,404,891,823,384
  5. Step 5: Solve for x
    x = 8,261,404,891,823,384/103,981,135.20
  6. Step 6: Final answer
    x = 79,450,997.30

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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.