Home / 20,997,173.62-31,488,949.06-8,042,634.94

Finding the Fourth Proportional to 20,997,173.62, 31,488,949.06 and 8,042,634.94

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Solution

The fourth proportional to 20,997,173.62, 31,488,949.06 and 8,042,634.94 is: 12,061,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997,173.62 : 31,488,949.06 = 8,042,634.94 : x
  2. Step 2: Convert to fraction form
    20,997,173.62/31,488,949.06 = 8,042,634.94/x
  3. Step 3: Cross multiply
    20,997,173.62x = 31,488,949.06 × 8,042,634.94
  4. Step 4: Simplify right side
    20,997,173.62x = 253,254,121,894,049
  5. Step 5: Solve for x
    x = 253,254,121,894,049/20,997,173.62
  6. Step 6: Final answer
    x = 12,061,343.42

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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.