Home / 8,279,983.80-12,419,975.70-2,600,782.20

Finding the Fourth Proportional to 8,279,983.80, 12,419,975.70 and 2,600,782.20

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Solution

The fourth proportional to 8,279,983.80, 12,419,975.70 and 2,600,782.20 is: 3,901,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279,983.80 : 12,419,975.70 = 2,600,782.20 : x
  2. Step 2: Convert to fraction form
    8,279,983.80/12,419,975.70 = 2,600,782.20/x
  3. Step 3: Cross multiply
    8,279,983.80x = 12,419,975.70 × 2,600,782.20
  4. Step 4: Simplify right side
    8,279,983.80x = 32,301,651,724,992.54
  5. Step 5: Solve for x
    x = 32,301,651,724,992.54/8,279,983.80
  6. Step 6: Final answer
    x = 3,901,173.30

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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.