Home / 20,915,874.98-28,864,608.37-11,623,836.72

Finding the Fourth Proportional to 20,915,874.98, 28,864,608.37 and 11,623,836.72

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Solution

The fourth proportional to 20,915,874.98, 28,864,608.37 and 11,623,836.72 is: 16,041,284.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,874.98 : 28,864,608.37 = 11,623,836.72 : x
  2. Step 2: Convert to fraction form
    20,915,874.98/28,864,608.37 = 11,623,836.72/x
  3. Step 3: Cross multiply
    20,915,874.98x = 28,864,608.37 × 11,623,836.72
  4. Step 4: Simplify right side
    20,915,874.98x = 335,517,494,650,565.75
  5. Step 5: Solve for x
    x = 335,517,494,650,565.75/20,915,874.98
  6. Step 6: Final answer
    x = 16,041,284.19

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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.