Home / 20,601,371.92-28,431,221.88-11,434,014.76

Finding the Fourth Proportional to 20,601,371.92, 28,431,221.88 and 11,434,014.76

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Solution

The fourth proportional to 20,601,371.92, 28,431,221.88 and 11,434,014.76 is: 15,779,677.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601,371.92 : 28,431,221.88 = 11,434,014.76 : x
  2. Step 2: Convert to fraction form
    20,601,371.92/28,431,221.88 = 11,434,014.76/x
  3. Step 3: Cross multiply
    20,601,371.92x = 28,431,221.88 × 11,434,014.76
  4. Step 4: Simplify right side
    20,601,371.92x = 325,083,010,620,754.94
  5. Step 5: Solve for x
    x = 325,083,010,620,754.94/20,601,371.92
  6. Step 6: Final answer
    x = 15,779,677.78

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1.5x scale

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.