Home / 13,989,425.40-20,984,138.10-8,306,724.60

Finding the Fourth Proportional to 13,989,425.40, 20,984,138.10 and 8,306,724.60

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Solution

The fourth proportional to 13,989,425.40, 20,984,138.10 and 8,306,724.60 is: 12,460,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989,425.40 : 20,984,138.10 = 8,306,724.60 : x
  2. Step 2: Convert to fraction form
    13,989,425.40/20,984,138.10 = 8,306,724.60/x
  3. Step 3: Cross multiply
    13,989,425.40x = 20,984,138.10 × 8,306,724.60
  4. Step 4: Simplify right side
    13,989,425.40x = 174,309,456,165,067.25
  5. Step 5: Solve for x
    x = 174,309,456,165,067.25/13,989,425.40
  6. Step 6: Final answer
    x = 12,460,086.90

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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.