Home / 21,167,997.45-31,751,996.18-8,384,253.45

Finding the Fourth Proportional to 21,167,997.45, 31,751,996.18 and 8,384,253.45

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Solution

The fourth proportional to 21,167,997.45, 31,751,996.18 and 8,384,253.45 is: 12,576,380.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,997.45 : 31,751,996.18 = 8,384,253.45 : x
  2. Step 2: Convert to fraction form
    21,167,997.45/31,751,996.18 = 8,384,253.45/x
  3. Step 3: Cross multiply
    21,167,997.45x = 31,751,996.18 × 8,384,253.45
  4. Step 4: Simplify right side
    21,167,997.45x = 266,216,783,474,630.56
  5. Step 5: Solve for x
    x = 266,216,783,474,630.56/21,167,997.45
  6. Step 6: Final answer
    x = 12,576,380.18

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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.