Home / 28,660,912.83-39,550,268.11-15,783,856.83

Finding the Fourth Proportional to 28,660,912.83, 39,550,268.11 and 15,783,856.83

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Solution

The fourth proportional to 28,660,912.83, 39,550,268.11 and 15,783,856.83 is: 21,780,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660,912.83 : 39,550,268.11 = 15,783,856.83 : x
  2. Step 2: Convert to fraction form
    28,660,912.83/39,550,268.11 = 15,783,856.83/x
  3. Step 3: Cross multiply
    28,660,912.83x = 39,550,268.11 × 15,783,856.83
  4. Step 4: Simplify right side
    28,660,912.83x = 624,255,769,436,354.62
  5. Step 5: Solve for x
    x = 624,255,769,436,354.62/28,660,912.83
  6. Step 6: Final answer
    x = 21,780,735.78

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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.