Home / 20,204,238.75-30,313,887.35-12,123,014.55

Finding the Fourth Proportional to 20,204,238.75, 30,313,887.35 and 12,123,014.55

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Solution

The fourth proportional to 20,204,238.75, 30,313,887.35 and 12,123,014.55 is: 18,189,039.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204,238.75 : 30,313,887.35 = 12,123,014.55 : x
  2. Step 2: Convert to fraction form
    20,204,238.75/30,313,887.35 = 12,123,014.55/x
  3. Step 3: Cross multiply
    20,204,238.75x = 30,313,887.35 × 12,123,014.55
  4. Step 4: Simplify right side
    20,204,238.75x = 367,495,697,350,495.88
  5. Step 5: Solve for x
    x = 367,495,697,350,495.88/20,204,238.75
  6. Step 6: Final answer
    x = 18,189,039.53

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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.