Finding the Fourth Proportional to 305,193,836.28, 421,170,493.14 and 165,967,623.48
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Solution
The fourth proportional to 305,193,836.28, 421,170,493.14 and 165,967,623.48 is: 229,036,951.33
Step by Step Solution
- Step 1: Write the proportion equation
305,193,836.28 : 421,170,493.14 = 165,967,623.48 : x - Step 2: Convert to fraction form
305,193,836.28/421,170,493.14 = 165,967,623.48/x - Step 3: Cross multiply
305,193,836.28x = 421,170,493.14 × 165,967,623.48 - Step 4: Simplify right side
305,193,836.28x = 69,900,665,826,345,440 - Step 5: Solve for x
x = 69,900,665,826,345,440/305,193,836.28 - Step 6: Final answer
x = 229,036,951.33
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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.