Home / 13,642,086.74-18,825,418.61-7,761,167.20

Finding the Fourth Proportional to 13,642,086.74, 18,825,418.61 and 7,761,167.20

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Solution

The fourth proportional to 13,642,086.74, 18,825,418.61 and 7,761,167.20 is: 10,710,034.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,086.74 : 18,825,418.61 = 7,761,167.20 : x
  2. Step 2: Convert to fraction form
    13,642,086.74/18,825,418.61 = 7,761,167.20/x
  3. Step 3: Cross multiply
    13,642,086.74x = 18,825,418.61 × 7,761,167.20
  4. Step 4: Simplify right side
    13,642,086.74x = 146,107,221,442,201.59
  5. Step 5: Solve for x
    x = 146,107,221,442,201.59/13,642,086.74
  6. Step 6: Final answer
    x = 10,710,034.63

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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.