Finding the Fourth Proportional to 20,033,517.11, 27,645,982.29 and 11,212,965.75
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Solution
The fourth proportional to 20,033,517.11, 27,645,982.29 and 11,212,965.75 is: 15,473,740.88
Step by Step Solution
- Step 1: Write the proportion equation
20,033,517.11 : 27,645,982.29 = 11,212,965.75 : x - Step 2: Convert to fraction form
20,033,517.11/27,645,982.29 = 11,212,965.75/x - Step 3: Cross multiply
20,033,517.11x = 27,645,982.29 × 11,212,965.75 - Step 4: Simplify right side
20,033,517.11x = 309,993,452,542,876.56 - Step 5: Solve for x
x = 309,993,452,542,876.56/20,033,517.11 - Step 6: Final answer
x = 15,473,740.88
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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.