Home / 12,189,940.43-18,177,473.39-12,080,666.97

Finding the Fourth Proportional to 12,189,940.43, 18,177,473.39 and 12,080,666.97

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Solution

The fourth proportional to 12,189,940.43, 18,177,473.39 and 12,080,666.97 is: 18,014,526.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189,940.43 : 18,177,473.39 = 12,080,666.97 : x
  2. Step 2: Convert to fraction form
    12,189,940.43/18,177,473.39 = 12,080,666.97/x
  3. Step 3: Cross multiply
    12,189,940.43x = 18,177,473.39 × 12,080,666.97
  4. Step 4: Simplify right side
    12,189,940.43x = 219,596,002,320,223.62
  5. Step 5: Solve for x
    x = 219,596,002,320,223.62/12,189,940.43
  6. Step 6: Final answer
    x = 18,014,526.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.