Home / 8,279,620.40-12,419,430.60-6,264,081.20

Finding the Fourth Proportional to 8,279,620.40, 12,419,430.60 and 6,264,081.20

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Solution

The fourth proportional to 8,279,620.40, 12,419,430.60 and 6,264,081.20 is: 9,396,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279,620.40 : 12,419,430.60 = 6,264,081.20 : x
  2. Step 2: Convert to fraction form
    8,279,620.40/12,419,430.60 = 6,264,081.20/x
  3. Step 3: Cross multiply
    8,279,620.40x = 12,419,430.60 × 6,264,081.20
  4. Step 4: Simplify right side
    8,279,620.40x = 77,796,321,736,164.72
  5. Step 5: Solve for x
    x = 77,796,321,736,164.72/8,279,620.40
  6. Step 6: Final answer
    x = 9,396,121.80

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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.