Home / 8,186,991.78-12,280,438.62-2,121,708.54

Finding the Fourth Proportional to 8,186,991.78, 12,280,438.62 and 2,121,708.54

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Solution

The fourth proportional to 8,186,991.78, 12,280,438.62 and 2,121,708.54 is: 3,182,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186,991.78 : 12,280,438.62 = 2,121,708.54 : x
  2. Step 2: Convert to fraction form
    8,186,991.78/12,280,438.62 = 2,121,708.54/x
  3. Step 3: Cross multiply
    8,186,991.78x = 12,280,438.62 × 2,121,708.54
  4. Step 4: Simplify right side
    8,186,991.78x = 26,055,511,494,999.81
  5. Step 5: Solve for x
    x = 26,055,511,494,999.81/8,186,991.78
  6. Step 6: Final answer
    x = 3,182,550.10

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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.