Home / 8,269,731.20-12,379,713.60-7,274,403.20

Finding the Fourth Proportional to 8,269,731.20, 12,379,713.60 and 7,274,403.20

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Solution

The fourth proportional to 8,269,731.20, 12,379,713.60 and 7,274,403.20 is: 10,889,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269,731.20 : 12,379,713.60 = 7,274,403.20 : x
  2. Step 2: Convert to fraction form
    8,269,731.20/12,379,713.60 = 7,274,403.20/x
  3. Step 3: Cross multiply
    8,269,731.20x = 12,379,713.60 × 7,274,403.20
  4. Step 4: Simplify right side
    8,269,731.20x = 90,055,028,226,923.52
  5. Step 5: Solve for x
    x = 90,055,028,226,923.52/8,269,731.20
  6. Step 6: Final answer
    x = 10,889,716.49

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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.