Home / 12,286,731.76-16,959,062.69-7,131,754.06

Finding the Fourth Proportional to 12,286,731.76, 16,959,062.69 and 7,131,754.06

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Solution

The fourth proportional to 12,286,731.76, 16,959,062.69 and 7,131,754.06 is: 9,843,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,731.76 : 16,959,062.69 = 7,131,754.06 : x
  2. Step 2: Convert to fraction form
    12,286,731.76/16,959,062.69 = 7,131,754.06/x
  3. Step 3: Cross multiply
    12,286,731.76x = 16,959,062.69 × 7,131,754.06
  4. Step 4: Simplify right side
    12,286,731.76x = 120,947,864,193,202.03
  5. Step 5: Solve for x
    x = 120,947,864,193,202.03/12,286,731.76
  6. Step 6: Final answer
    x = 9,843,778.36

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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.