Home / 20,427,169.92-28,189,074.36-11,134,660.38

Finding the Fourth Proportional to 20,427,169.92, 28,189,074.36 and 11,134,660.38

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Solution

The fourth proportional to 20,427,169.92, 28,189,074.36 and 11,134,660.38 is: 15,365,602.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427,169.92 : 28,189,074.36 = 11,134,660.38 : x
  2. Step 2: Convert to fraction form
    20,427,169.92/28,189,074.36 = 11,134,660.38/x
  3. Step 3: Cross multiply
    20,427,169.92x = 28,189,074.36 × 11,134,660.38
  4. Step 4: Simplify right side
    20,427,169.92x = 313,875,769,425,165.88
  5. Step 5: Solve for x
    x = 313,875,769,425,165.88/20,427,169.92
  6. Step 6: Final answer
    x = 15,365,602.32

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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.