Home / 20,915,244.23-28,863,737.10-11,623,205.94

Finding the Fourth Proportional to 20,915,244.23, 28,863,737.10 and 11,623,205.94

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Solution

The fourth proportional to 20,915,244.23, 28,863,737.10 and 11,623,205.94 is: 16,040,413.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,244.23 : 28,863,737.10 = 11,623,205.94 : x
  2. Step 2: Convert to fraction form
    20,915,244.23/28,863,737.10 = 11,623,205.94/x
  3. Step 3: Cross multiply
    20,915,244.23x = 28,863,737.10 × 11,623,205.94
  4. Step 4: Simplify right side
    20,915,244.23x = 335,489,160,403,079.38
  5. Step 5: Solve for x
    x = 335,489,160,403,079.38/20,915,244.23
  6. Step 6: Final answer
    x = 16,040,413.24

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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.