Home / 12,165,446.97-18,245,844.86-3,645,783.45

Finding the Fourth Proportional to 12,165,446.97, 18,245,844.86 and 3,645,783.45

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Solution

The fourth proportional to 12,165,446.97, 18,245,844.86 and 3,645,783.45 is: 5,467,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165,446.97 : 18,245,844.86 = 3,645,783.45 : x
  2. Step 2: Convert to fraction form
    12,165,446.97/18,245,844.86 = 3,645,783.45/x
  3. Step 3: Cross multiply
    12,165,446.97x = 18,245,844.86 × 3,645,783.45
  4. Step 4: Simplify right side
    12,165,446.97x = 66,520,399,203,626.66
  5. Step 5: Solve for x
    x = 66,520,399,203,626.66/12,165,446.97
  6. Step 6: Final answer
    x = 5,467,978.23

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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.