Home / 12,507,698.68-18,761,350.38-3,987,977.56

Finding the Fourth Proportional to 12,507,698.68, 18,761,350.38 and 3,987,977.56

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Solution

The fourth proportional to 12,507,698.68, 18,761,350.38 and 3,987,977.56 is: 5,981,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,698.68 : 18,761,350.38 = 3,987,977.56 : x
  2. Step 2: Convert to fraction form
    12,507,698.68/18,761,350.38 = 3,987,977.56/x
  3. Step 3: Cross multiply
    12,507,698.68x = 18,761,350.38 × 3,987,977.56
  4. Step 4: Simplify right side
    12,507,698.68x = 74,819,844,310,737.47
  5. Step 5: Solve for x
    x = 74,819,844,310,737.47/12,507,698.68
  6. Step 6: Final answer
    x = 5,981,903.32

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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.