Home / 13,103,680.40-19,655,520.60-11,969,939.60

Finding the Fourth Proportional to 13,103,680.40, 19,655,520.60 and 11,969,939.60

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Solution

The fourth proportional to 13,103,680.40, 19,655,520.60 and 11,969,939.60 is: 17,954,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,680.40 : 19,655,520.60 = 11,969,939.60 : x
  2. Step 2: Convert to fraction form
    13,103,680.40/19,655,520.60 = 11,969,939.60/x
  3. Step 3: Cross multiply
    13,103,680.40x = 19,655,520.60 × 11,969,939.60
  4. Step 4: Simplify right side
    13,103,680.40x = 235,275,394,388,555.78
  5. Step 5: Solve for x
    x = 235,275,394,388,555.78/13,103,680.40
  6. Step 6: Final answer
    x = 17,954,909.40

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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.