Home / 31,102,170.78-42,921,014.13-17,351,134.86

Finding the Fourth Proportional to 31,102,170.78, 42,921,014.13 and 17,351,134.86

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Solution

The fourth proportional to 31,102,170.78, 42,921,014.13 and 17,351,134.86 is: 23,944,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,102,170.78 : 42,921,014.13 = 17,351,134.86 : x
  2. Step 2: Convert to fraction form
    31,102,170.78/42,921,014.13 = 17,351,134.86/x
  3. Step 3: Cross multiply
    31,102,170.78x = 42,921,014.13 × 17,351,134.86
  4. Step 4: Simplify right side
    31,102,170.78x = 744,728,304,497,595.62
  5. Step 5: Solve for x
    x = 744,728,304,497,595.62/31,102,170.78
  6. Step 6: Final answer
    x = 23,944,576.40

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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.