Home / 30,939,851.26-42,667,727.76-20,324,499.76

Finding the Fourth Proportional to 30,939,851.26, 42,667,727.76 and 20,324,499.76

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Solution

The fourth proportional to 30,939,851.26, 42,667,727.76 and 20,324,499.76 is: 28,028,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939,851.26 : 42,667,727.76 = 20,324,499.76 : x
  2. Step 2: Convert to fraction form
    30,939,851.26/42,667,727.76 = 20,324,499.76/x
  3. Step 3: Cross multiply
    30,939,851.26x = 42,667,727.76 × 20,324,499.76
  4. Step 4: Simplify right side
    30,939,851.26x = 867,200,222,617,865.38
  5. Step 5: Solve for x
    x = 867,200,222,617,865.38/30,939,851.26
  6. Step 6: Final answer
    x = 28,028,584.08

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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.