Home / 12,507,581.82-18,761,175.63-3,987,860.88

Finding the Fourth Proportional to 12,507,581.82, 18,761,175.63 and 3,987,860.88

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Solution

The fourth proportional to 12,507,581.82, 18,761,175.63 and 3,987,860.88 is: 5,981,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,581.82 : 18,761,175.63 = 3,987,860.88 : x
  2. Step 2: Convert to fraction form
    12,507,581.82/18,761,175.63 = 3,987,860.88/x
  3. Step 3: Cross multiply
    12,507,581.82x = 18,761,175.63 × 3,987,860.88
  4. Step 4: Simplify right side
    12,507,581.82x = 74,816,958,357,686.34
  5. Step 5: Solve for x
    x = 74,816,958,357,686.34/12,507,581.82
  6. Step 6: Final answer
    x = 5,981,728.48

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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.