Home / 8,972,361.20-13,458,541.80-8,279,519.60

Finding the Fourth Proportional to 8,972,361.20, 13,458,541.80 and 8,279,519.60

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Solution

The fourth proportional to 8,972,361.20, 13,458,541.80 and 8,279,519.60 is: 12,419,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972,361.20 : 13,458,541.80 = 8,279,519.60 : x
  2. Step 2: Convert to fraction form
    8,972,361.20/13,458,541.80 = 8,279,519.60/x
  3. Step 3: Cross multiply
    8,972,361.20x = 13,458,541.80 × 8,279,519.60
  4. Step 4: Simplify right side
    8,972,361.20x = 111,430,260,620,519.28
  5. Step 5: Solve for x
    x = 111,430,260,620,519.28/8,972,361.20
  6. Step 6: Final answer
    x = 12,419,279.40

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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.