Finding the Fourth Proportional to 3,100,211.21, 4,278,049.16 and 1,723,471.09
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Solution
The fourth proportional to 3,100,211.21, 4,278,049.16 and 1,723,471.09 is: 2,378,255.39
Step by Step Solution
- Step 1: Write the proportion equation
3,100,211.21 : 4,278,049.16 = 1,723,471.09 : x - Step 2: Convert to fraction form
3,100,211.21/4,278,049.16 = 1,723,471.09/x - Step 3: Cross multiply
3,100,211.21x = 4,278,049.16 × 1,723,471.09 - Step 4: Simplify right side
3,100,211.21x = 7,373,094,029,546.31 - Step 5: Solve for x
x = 7,373,094,029,546.31/3,100,211.21 - Step 6: Final answer
x = 2,378,255.39
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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.