Home / 15,079,397.56-20,809,660.22-8,203,928.92

Finding the Fourth Proportional to 15,079,397.56, 20,809,660.22 and 8,203,928.92

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Solution

The fourth proportional to 15,079,397.56, 20,809,660.22 and 8,203,928.92 is: 11,321,471.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079,397.56 : 20,809,660.22 = 8,203,928.92 : x
  2. Step 2: Convert to fraction form
    15,079,397.56/20,809,660.22 = 8,203,928.92/x
  3. Step 3: Cross multiply
    15,079,397.56x = 20,809,660.22 × 8,203,928.92
  4. Step 4: Simplify right side
    15,079,397.56x = 170,720,973,294,231.56
  5. Step 5: Solve for x
    x = 170,720,973,294,231.56/15,079,397.56
  6. Step 6: Final answer
    x = 11,321,471.74

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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.