Home / 20,882,918.40-31,315,046.40-8,099,174.40

Finding the Fourth Proportional to 20,882,918.40, 31,315,046.40 and 8,099,174.40

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Solution

The fourth proportional to 20,882,918.40, 31,315,046.40 and 8,099,174.40 is: 12,145,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882,918.40 : 31,315,046.40 = 8,099,174.40 : x
  2. Step 2: Convert to fraction form
    20,882,918.40/31,315,046.40 = 8,099,174.40/x
  3. Step 3: Cross multiply
    20,882,918.40x = 31,315,046.40 × 8,099,174.40
  4. Step 4: Simplify right side
    20,882,918.40x = 253,626,022,137,692.16
  5. Step 5: Solve for x
    x = 253,626,022,137,692.16/20,882,918.40
  6. Step 6: Final answer
    x = 12,145,142.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.