Finding the Fourth Proportional to 4,640,623.05, 6,405,236.91 and 3,171,126.42
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Solution
The fourth proportional to 4,640,623.05, 6,405,236.91 and 3,171,126.42 is: 4,376,958.82
Step by Step Solution
- Step 1: Write the proportion equation
4,640,623.05 : 6,405,236.91 = 3,171,126.42 : x - Step 2: Convert to fraction form
4,640,623.05/6,405,236.91 = 3,171,126.42/x - Step 3: Cross multiply
4,640,623.05x = 6,405,236.91 × 3,171,126.42 - Step 4: Simplify right side
4,640,623.05x = 20,311,815,991,660.16 - Step 5: Solve for x
x = 20,311,815,991,660.16/4,640,623.05 - Step 6: Final answer
x = 4,376,958.82
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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.