Finding the Fourth Proportional to 20,198,795.85, 27,874,516.64 and 11,497,528.80
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Solution
The fourth proportional to 20,198,795.85, 27,874,516.64 and 11,497,528.80 is: 15,866,691.27
Step by Step Solution
- Step 1: Write the proportion equation
20,198,795.85 : 27,874,516.64 = 11,497,528.80 : x - Step 2: Convert to fraction form
20,198,795.85/27,874,516.64 = 11,497,528.80/x - Step 3: Cross multiply
20,198,795.85x = 27,874,516.64 × 11,497,528.80 - Step 4: Simplify right side
20,198,795.85x = 320,488,057,796,991.62 - Step 5: Solve for x
x = 320,488,057,796,991.62/20,198,795.85 - Step 6: Final answer
x = 15,866,691.27
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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.