Home / 28,560,229.80-39,413,163.78-15,507,513.96

Finding the Fourth Proportional to 28,560,229.80, 39,413,163.78 and 15,507,513.96

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Solution

The fourth proportional to 28,560,229.80, 39,413,163.78 and 15,507,513.96 is: 21,400,394.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560,229.80 : 39,413,163.78 = 15,507,513.96 : x
  2. Step 2: Convert to fraction form
    28,560,229.80/39,413,163.78 = 15,507,513.96/x
  3. Step 3: Cross multiply
    28,560,229.80x = 39,413,163.78 × 15,507,513.96
  4. Step 4: Simplify right side
    28,560,229.80x = 611,200,187,526,116.38
  5. Step 5: Solve for x
    x = 611,200,187,526,116.38/28,560,229.80
  6. Step 6: Final answer
    x = 21,400,394.60

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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.