Home / 20,093,936.51-30,102,873.41-11,871,990.80

Finding the Fourth Proportional to 20,093,936.51, 30,102,873.41 and 11,871,990.80

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Solution

The fourth proportional to 20,093,936.51, 30,102,873.41 and 11,871,990.80 is: 17,785,516.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093,936.51 : 30,102,873.41 = 11,871,990.80 : x
  2. Step 2: Convert to fraction form
    20,093,936.51/30,102,873.41 = 11,871,990.80/x
  3. Step 3: Cross multiply
    20,093,936.51x = 30,102,873.41 × 11,871,990.80
  4. Step 4: Simplify right side
    20,093,936.51x = 357,381,036,056,250.25
  5. Step 5: Solve for x
    x = 357,381,036,056,250.25/20,093,936.51
  6. Step 6: Final answer
    x = 17,785,516.34

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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.