Home / 20,839,355.60-31,256,195.68-5,485,359.44

Finding the Fourth Proportional to 20,839,355.60, 31,256,195.68 and 5,485,359.44

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Solution

The fourth proportional to 20,839,355.60, 31,256,195.68 and 5,485,359.44 is: 8,227,292.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839,355.60 : 31,256,195.68 = 5,485,359.44 : x
  2. Step 2: Convert to fraction form
    20,839,355.60/31,256,195.68 = 5,485,359.44/x
  3. Step 3: Cross multiply
    20,839,355.60x = 31,256,195.68 × 5,485,359.44
  4. Step 4: Simplify right side
    20,839,355.60x = 171,451,468,031,775.22
  5. Step 5: Solve for x
    x = 171,451,468,031,775.22/20,839,355.60
  6. Step 6: Final answer
    x = 8,227,292.21

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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.