Home / 13,179,129.20-19,780,503.60-11,384,039.60

Finding the Fourth Proportional to 13,179,129.20, 19,780,503.60 and 11,384,039.60

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Solution

The fourth proportional to 13,179,129.20, 19,780,503.60 and 11,384,039.60 is: 17,086,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179,129.20 : 19,780,503.60 = 11,384,039.60 : x
  2. Step 2: Convert to fraction form
    13,179,129.20/19,780,503.60 = 11,384,039.60/x
  3. Step 3: Cross multiply
    13,179,129.20x = 19,780,503.60 × 11,384,039.60
  4. Step 4: Simplify right side
    13,179,129.20x = 225,182,036,290,342.56
  5. Step 5: Solve for x
    x = 225,182,036,290,342.56/13,179,129.20
  6. Step 6: Final answer
    x = 17,086,260.62

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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.