Home / 12,507,697.68-18,761,348.88-3,987,976.56

Finding the Fourth Proportional to 12,507,697.68, 18,761,348.88 and 3,987,976.56

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Solution

The fourth proportional to 12,507,697.68, 18,761,348.88 and 3,987,976.56 is: 5,981,901.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,697.68 : 18,761,348.88 = 3,987,976.56 : x
  2. Step 2: Convert to fraction form
    12,507,697.68/18,761,348.88 = 3,987,976.56/x
  3. Step 3: Cross multiply
    12,507,697.68x = 18,761,348.88 × 3,987,976.56
  4. Step 4: Simplify right side
    12,507,697.68x = 74,819,819,567,422.25
  5. Step 5: Solve for x
    x = 74,819,819,567,422.25/12,507,697.68
  6. Step 6: Final answer
    x = 5,981,901.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.