Finding the Fourth Proportional to 20,591,880.26, 28,416,716.75 and 11,299,605.80
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Solution
The fourth proportional to 20,591,880.26, 28,416,716.75 and 11,299,605.80 is: 15,593,413.19
Step by Step Solution
- Step 1: Write the proportion equation
20,591,880.26 : 28,416,716.75 = 11,299,605.80 : x - Step 2: Convert to fraction form
20,591,880.26/28,416,716.75 = 11,299,605.80/x - Step 3: Cross multiply
20,591,880.26x = 28,416,716.75 × 11,299,605.80 - Step 4: Simplify right side
20,591,880.26x = 321,097,697,206,675.56 - Step 5: Solve for x
x = 321,097,697,206,675.56/20,591,880.26 - Step 6: Final answer
x = 15,593,413.19
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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.