Home / 30,646,511.20-45,969,766.80-13,589,077.60

Finding the Fourth Proportional to 30,646,511.20, 45,969,766.80 and 13,589,077.60

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Solution

The fourth proportional to 30,646,511.20, 45,969,766.80 and 13,589,077.60 is: 20,383,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,646,511.20 : 45,969,766.80 = 13,589,077.60 : x
  2. Step 2: Convert to fraction form
    30,646,511.20/45,969,766.80 = 13,589,077.60/x
  3. Step 3: Cross multiply
    30,646,511.20x = 45,969,766.80 × 13,589,077.60
  4. Step 4: Simplify right side
    30,646,511.20x = 624,686,728,299,103.62
  5. Step 5: Solve for x
    x = 624,686,728,299,103.62/30,646,511.20
  6. Step 6: Final answer
    x = 20,383,616.40

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Similar ratio
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1.5x scale

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.