Home / 28,667,707-39,561,435.66-15,790,651

Finding the Fourth Proportional to 28,667,707, 39,561,435.66 and 15,790,651

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Solution

The fourth proportional to 28,667,707, 39,561,435.66 and 15,790,651 is: 21,791,098.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,667,707 : 39,561,435.66 = 15,790,651 : x
  2. Step 2: Convert to fraction form
    28,667,707/39,561,435.66 = 15,790,651/x
  3. Step 3: Cross multiply
    28,667,707x = 39,561,435.66 × 15,790,651
  4. Step 4: Simplify right side
    28,667,707x = 624,700,823,566,014.62
  5. Step 5: Solve for x
    x = 624,700,823,566,014.62/28,667,707
  6. Step 6: Final answer
    x = 21,791,098.38

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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.