Home / 20,684,301.15-30,979,212.53-12,181,245.15

Finding the Fourth Proportional to 20,684,301.15, 30,979,212.53 and 12,181,245.15

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Solution

The fourth proportional to 20,684,301.15, 30,979,212.53 and 12,181,245.15 is: 18,244,047.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,301.15 : 30,979,212.53 = 12,181,245.15 : x
  2. Step 2: Convert to fraction form
    20,684,301.15/30,979,212.53 = 12,181,245.15/x
  3. Step 3: Cross multiply
    20,684,301.15x = 30,979,212.53 × 12,181,245.15
  4. Step 4: Simplify right side
    20,684,301.15x = 377,365,382,320,975.50
  5. Step 5: Solve for x
    x = 377,365,382,320,975.50/20,684,301.15
  6. Step 6: Final answer
    x = 18,244,047.97

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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.