Home / 13,513,172.88-20,269,759.30-3,415,793.88

Finding the Fourth Proportional to 13,513,172.88, 20,269,759.30 and 3,415,793.88

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Solution

The fourth proportional to 13,513,172.88, 20,269,759.30 and 3,415,793.88 is: 5,123,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513,172.88 : 20,269,759.30 = 3,415,793.88 : x
  2. Step 2: Convert to fraction form
    13,513,172.88/20,269,759.30 = 3,415,793.88/x
  3. Step 3: Cross multiply
    13,513,172.88x = 20,269,759.30 × 3,415,793.88
  4. Step 4: Simplify right side
    13,513,172.88x = 69,237,319,766,013.09
  5. Step 5: Solve for x
    x = 69,237,319,766,013.09/13,513,172.88
  6. Step 6: Final answer
    x = 5,123,690.81

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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.