Home / 12,384,819.28-18,548,945.08-5,912,447.32

Finding the Fourth Proportional to 12,384,819.28, 18,548,945.08 and 5,912,447.32

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Solution

The fourth proportional to 12,384,819.28, 18,548,945.08 and 5,912,447.32 is: 8,855,168.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384,819.28 : 18,548,945.08 = 5,912,447.32 : x
  2. Step 2: Convert to fraction form
    12,384,819.28/18,548,945.08 = 5,912,447.32/x
  3. Step 3: Cross multiply
    12,384,819.28x = 18,548,945.08 × 5,912,447.32
  4. Step 4: Simplify right side
    12,384,819.28x = 109,669,660,627,073.19
  5. Step 5: Solve for x
    x = 109,669,660,627,073.19/12,384,819.28
  6. Step 6: Final answer
    x = 8,855,168.42

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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.