Home / 31,171,889.40-43,018,535.88-17,420,853.12

Finding the Fourth Proportional to 31,171,889.40, 43,018,535.88 and 17,420,853.12

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Solution

The fourth proportional to 31,171,889.40, 43,018,535.88 and 17,420,853.12 is: 24,041,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,171,889.40 : 43,018,535.88 = 17,420,853.12 : x
  2. Step 2: Convert to fraction form
    31,171,889.40/43,018,535.88 = 17,420,853.12/x
  3. Step 3: Cross multiply
    31,171,889.40x = 43,018,535.88 × 17,420,853.12
  4. Step 4: Simplify right side
    31,171,889.40x = 749,419,595,002,930
  5. Step 5: Solve for x
    x = 749,419,595,002,930/31,171,889.40
  6. Step 6: Final answer
    x = 24,041,519.76

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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.