Home / 20,204,238.25-30,313,886.60-12,123,014.05

Finding the Fourth Proportional to 20,204,238.25, 30,313,886.60 and 12,123,014.05

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Solution

The fourth proportional to 20,204,238.25, 30,313,886.60 and 12,123,014.05 is: 18,189,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204,238.25 : 30,313,886.60 = 12,123,014.05 : x
  2. Step 2: Convert to fraction form
    20,204,238.25/30,313,886.60 = 12,123,014.05/x
  3. Step 3: Cross multiply
    20,204,238.25x = 30,313,886.60 × 12,123,014.05
  4. Step 4: Simplify right side
    20,204,238.25x = 367,495,673,161,906.75
  5. Step 5: Solve for x
    x = 367,495,673,161,906.75/20,204,238.25
  6. Step 6: Final answer
    x = 18,189,038.79

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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.