Home / 13,989,378.40-20,984,067.60-8,306,677.60

Finding the Fourth Proportional to 13,989,378.40, 20,984,067.60 and 8,306,677.60

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Solution

The fourth proportional to 13,989,378.40, 20,984,067.60 and 8,306,677.60 is: 12,460,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989,378.40 : 20,984,067.60 = 8,306,677.60 : x
  2. Step 2: Convert to fraction form
    13,989,378.40/20,984,067.60 = 8,306,677.60/x
  3. Step 3: Cross multiply
    13,989,378.40x = 20,984,067.60 × 8,306,677.60
  4. Step 4: Simplify right side
    13,989,378.40x = 174,307,884,289,805.75
  5. Step 5: Solve for x
    x = 174,307,884,289,805.75/13,989,378.40
  6. Step 6: Final answer
    x = 12,460,016.40

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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.