Finding the Fourth Proportional to 311,519,213.38, 430,028,882.82 and 194,102,556.61
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Solution
The fourth proportional to 311,519,213.38, 430,028,882.82 and 194,102,556.61 is: 267,944,004.69
Step by Step Solution
- Step 1: Write the proportion equation
311,519,213.38 : 430,028,882.82 = 194,102,556.61 : x - Step 2: Convert to fraction form
311,519,213.38/430,028,882.82 = 194,102,556.61/x - Step 3: Cross multiply
311,519,213.38x = 430,028,882.82 × 194,102,556.61 - Step 4: Simplify right side
311,519,213.38x = 83,469,705,571,504,112 - Step 5: Solve for x
x = 83,469,705,571,504,112/311,519,213.38 - Step 6: Final answer
x = 267,944,004.69
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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.