Home / 28,660,913.33-39,550,268.80-15,783,857.33

Finding the Fourth Proportional to 28,660,913.33, 39,550,268.80 and 15,783,857.33

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Solution

The fourth proportional to 28,660,913.33, 39,550,268.80 and 15,783,857.33 is: 21,780,736.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660,913.33 : 39,550,268.80 = 15,783,857.33 : x
  2. Step 2: Convert to fraction form
    28,660,913.33/39,550,268.80 = 15,783,857.33/x
  3. Step 3: Cross multiply
    28,660,913.33x = 39,550,268.80 × 15,783,857.33
  4. Step 4: Simplify right side
    28,660,913.33x = 624,255,800,102,350.25
  5. Step 5: Solve for x
    x = 624,255,800,102,350.25/28,660,913.33
  6. Step 6: Final answer
    x = 21,780,736.47

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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.