Home / 21,167,997.70-31,751,996.55-8,384,253.70

Finding the Fourth Proportional to 21,167,997.70, 31,751,996.55 and 8,384,253.70

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Solution

The fourth proportional to 21,167,997.70, 31,751,996.55 and 8,384,253.70 is: 12,576,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,997.70 : 31,751,996.55 = 8,384,253.70 : x
  2. Step 2: Convert to fraction form
    21,167,997.70/31,751,996.55 = 8,384,253.70/x
  3. Step 3: Cross multiply
    21,167,997.70x = 31,751,996.55 × 8,384,253.70
  4. Step 4: Simplify right side
    21,167,997.70x = 266,216,794,556,724.75
  5. Step 5: Solve for x
    x = 266,216,794,556,724.75/21,167,997.70
  6. Step 6: Final answer
    x = 12,576,380.55

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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.