Home / 20,667,006.80-30,986,513.40-10,561,317.20

Finding the Fourth Proportional to 20,667,006.80, 30,986,513.40 and 10,561,317.20

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Solution

The fourth proportional to 20,667,006.80, 30,986,513.40 and 10,561,317.20 is: 15,834,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667,006.80 : 30,986,513.40 = 10,561,317.20 : x
  2. Step 2: Convert to fraction form
    20,667,006.80/30,986,513.40 = 10,561,317.20/x
  3. Step 3: Cross multiply
    20,667,006.80x = 30,986,513.40 × 10,561,317.20
  4. Step 4: Simplify right side
    20,667,006.80x = 327,258,396,939,450.44
  5. Step 5: Solve for x
    x = 327,258,396,939,450.44/20,667,006.80
  6. Step 6: Final answer
    x = 15,834,823.11

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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.