Home / 13,520,393.08-20,280,589.60-3,285,200.30

Finding the Fourth Proportional to 13,520,393.08, 20,280,589.60 and 3,285,200.30

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Solution

The fourth proportional to 13,520,393.08, 20,280,589.60 and 3,285,200.30 is: 4,927,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520,393.08 : 20,280,589.60 = 3,285,200.30 : x
  2. Step 2: Convert to fraction form
    13,520,393.08/20,280,589.60 = 3,285,200.30/x
  3. Step 3: Cross multiply
    13,520,393.08x = 20,280,589.60 × 3,285,200.30
  4. Step 4: Simplify right side
    13,520,393.08x = 66,625,799,038,096.88
  5. Step 5: Solve for x
    x = 66,625,799,038,096.88/13,520,393.08
  6. Step 6: Final answer
    x = 4,927,800.45

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Double scale
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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.