Finding the Fourth Proportional to 20,211,458.21, 27,891,884.93 and 11,044,100.96
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Solution
The fourth proportional to 20,211,458.21, 27,891,884.93 and 11,044,100.96 is: 15,240,898.99
Step by Step Solution
- Step 1: Write the proportion equation
20,211,458.21 : 27,891,884.93 = 11,044,100.96 : x - Step 2: Convert to fraction form
20,211,458.21/27,891,884.93 = 11,044,100.96/x - Step 3: Cross multiply
20,211,458.21x = 27,891,884.93 × 11,044,100.96 - Step 4: Simplify right side
20,211,458.21x = 308,040,792,936,942.62 - Step 5: Solve for x
x = 308,040,792,936,942.62/20,211,458.21 - Step 6: Final answer
x = 15,240,898.99
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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.