Home / 22,143,921.82-30,557,919.27-12,982,666.30

Finding the Fourth Proportional to 22,143,921.82, 30,557,919.27 and 12,982,666.30

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Solution

The fourth proportional to 22,143,921.82, 30,557,919.27 and 12,982,666.30 is: 17,915,673.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143,921.82 : 30,557,919.27 = 12,982,666.30 : x
  2. Step 2: Convert to fraction form
    22,143,921.82/30,557,919.27 = 12,982,666.30/x
  3. Step 3: Cross multiply
    22,143,921.82x = 30,557,919.27 × 12,982,666.30
  4. Step 4: Simplify right side
    22,143,921.82x = 396,723,268,704,749.62
  5. Step 5: Solve for x
    x = 396,723,268,704,749.62/22,143,921.82
  6. Step 6: Final answer
    x = 17,915,673.29

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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.