Home / 20,591,880.31-28,416,716.84-11,299,605.85

Finding the Fourth Proportional to 20,591,880.31, 28,416,716.84 and 11,299,605.85

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Solution

The fourth proportional to 20,591,880.31, 28,416,716.84 and 11,299,605.85 is: 15,593,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591,880.31 : 28,416,716.84 = 11,299,605.85 : x
  2. Step 2: Convert to fraction form
    20,591,880.31/28,416,716.84 = 11,299,605.85/x
  3. Step 3: Cross multiply
    20,591,880.31x = 28,416,716.84 × 11,299,605.85
  4. Step 4: Simplify right side
    20,591,880.31x = 321,097,699,786,559.50
  5. Step 5: Solve for x
    x = 321,097,699,786,559.50/20,591,880.31
  6. Step 6: Final answer
    x = 15,593,413.28

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1.5x scale

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.