Home / 12,722,922.56-17,563,731.38-7,832,336.76

Finding the Fourth Proportional to 12,722,922.56, 17,563,731.38 and 7,832,336.76

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Solution

The fourth proportional to 12,722,922.56, 17,563,731.38 and 7,832,336.76 is: 10,812,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722,922.56 : 17,563,731.38 = 7,832,336.76 : x
  2. Step 2: Convert to fraction form
    12,722,922.56/17,563,731.38 = 7,832,336.76/x
  3. Step 3: Cross multiply
    12,722,922.56x = 17,563,731.38 × 7,832,336.76
  4. Step 4: Simplify right side
    12,722,922.56x = 137,565,058,891,177.84
  5. Step 5: Solve for x
    x = 137,565,058,891,177.84/12,722,922.56
  6. Step 6: Final answer
    x = 10,812,378.86

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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.