Home / 20,039,322.72-27,654,149.88-10,871,768.64

Finding the Fourth Proportional to 20,039,322.72, 27,654,149.88 and 10,871,768.64

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Solution

The fourth proportional to 20,039,322.72, 27,654,149.88 and 10,871,768.64 is: 15,002,978.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039,322.72 : 27,654,149.88 = 10,871,768.64 : x
  2. Step 2: Convert to fraction form
    20,039,322.72/27,654,149.88 = 10,871,768.64/x
  3. Step 3: Cross multiply
    20,039,322.72x = 27,654,149.88 × 10,871,768.64
  4. Step 4: Simplify right side
    20,039,322.72x = 300,649,519,431,243.75
  5. Step 5: Solve for x
    x = 300,649,519,431,243.75/20,039,322.72
  6. Step 6: Final answer
    x = 15,002,978.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.