Home / 11,681,343.20-17,522,014.80-8,280,120.80

Finding the Fourth Proportional to 11,681,343.20, 17,522,014.80 and 8,280,120.80

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Solution

The fourth proportional to 11,681,343.20, 17,522,014.80 and 8,280,120.80 is: 12,420,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681,343.20 : 17,522,014.80 = 8,280,120.80 : x
  2. Step 2: Convert to fraction form
    11,681,343.20/17,522,014.80 = 8,280,120.80/x
  3. Step 3: Cross multiply
    11,681,343.20x = 17,522,014.80 × 8,280,120.80
  4. Step 4: Simplify right side
    11,681,343.20x = 145,084,399,203,387.84
  5. Step 5: Solve for x
    x = 145,084,399,203,387.84/11,681,343.20
  6. Step 6: Final answer
    x = 12,420,181.20

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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.