Home / 20,915,875.23-28,864,608.71-11,623,836.97

Finding the Fourth Proportional to 20,915,875.23, 28,864,608.71 and 11,623,836.97

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Solution

The fourth proportional to 20,915,875.23, 28,864,608.71 and 11,623,836.97 is: 16,041,284.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,875.23 : 28,864,608.71 = 11,623,836.97 : x
  2. Step 2: Convert to fraction form
    20,915,875.23/28,864,608.71 = 11,623,836.97/x
  3. Step 3: Cross multiply
    20,915,875.23x = 28,864,608.71 × 11,623,836.97
  4. Step 4: Simplify right side
    20,915,875.23x = 335,517,505,876,941.62
  5. Step 5: Solve for x
    x = 335,517,505,876,941.62/20,915,875.23
  6. Step 6: Final answer
    x = 16,041,284.54

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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.