Home / 13,103,678.40-19,655,517.60-11,969,937.60

Finding the Fourth Proportional to 13,103,678.40, 19,655,517.60 and 11,969,937.60

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Solution

The fourth proportional to 13,103,678.40, 19,655,517.60 and 11,969,937.60 is: 17,954,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,678.40 : 19,655,517.60 = 11,969,937.60 : x
  2. Step 2: Convert to fraction form
    13,103,678.40/19,655,517.60 = 11,969,937.60/x
  3. Step 3: Cross multiply
    13,103,678.40x = 19,655,517.60 × 11,969,937.60
  4. Step 4: Simplify right side
    13,103,678.40x = 235,275,319,167,701.78
  5. Step 5: Solve for x
    x = 235,275,319,167,701.78/13,103,678.40
  6. Step 6: Final answer
    x = 17,954,906.40

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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.