Home / 20,839,356.60-31,256,197.18-5,485,360.44

Finding the Fourth Proportional to 20,839,356.60, 31,256,197.18 and 5,485,360.44

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Solution

The fourth proportional to 20,839,356.60, 31,256,197.18 and 5,485,360.44 is: 8,227,293.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839,356.60 : 31,256,197.18 = 5,485,360.44 : x
  2. Step 2: Convert to fraction form
    20,839,356.60/31,256,197.18 = 5,485,360.44/x
  3. Step 3: Cross multiply
    20,839,356.60x = 31,256,197.18 × 5,485,360.44
  4. Step 4: Simplify right side
    20,839,356.60x = 171,451,507,516,011.56
  5. Step 5: Solve for x
    x = 171,451,507,516,011.56/20,839,356.60
  6. Step 6: Final answer
    x = 8,227,293.71

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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.