Home / 8,269,729.20-12,379,710.60-7,274,401.20

Finding the Fourth Proportional to 8,269,729.20, 12,379,710.60 and 7,274,401.20

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Solution

The fourth proportional to 8,269,729.20, 12,379,710.60 and 7,274,401.20 is: 10,889,713.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269,729.20 : 12,379,710.60 = 7,274,401.20 : x
  2. Step 2: Convert to fraction form
    8,269,729.20/12,379,710.60 = 7,274,401.20/x
  3. Step 3: Cross multiply
    8,269,729.20x = 12,379,710.60 × 7,274,401.20
  4. Step 4: Simplify right side
    8,269,729.20x = 90,054,981,644,292.72
  5. Step 5: Solve for x
    x = 90,054,981,644,292.72/8,269,729.20
  6. Step 6: Final answer
    x = 10,889,713.49

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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.