Home / 12,507,579.82-18,761,172.63-3,987,858.88

Finding the Fourth Proportional to 12,507,579.82, 18,761,172.63 and 3,987,858.88

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Solution

The fourth proportional to 12,507,579.82, 18,761,172.63 and 3,987,858.88 is: 5,981,725.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,579.82 : 18,761,172.63 = 3,987,858.88 : x
  2. Step 2: Convert to fraction form
    12,507,579.82/18,761,172.63 = 3,987,858.88/x
  3. Step 3: Cross multiply
    12,507,579.82x = 18,761,172.63 × 3,987,858.88
  4. Step 4: Simplify right side
    12,507,579.82x = 74,816,908,871,758.45
  5. Step 5: Solve for x
    x = 74,816,908,871,758.45/12,507,579.82
  6. Step 6: Final answer
    x = 5,981,725.48

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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.