Finding the Fourth Proportional to 3,729,979.36, 5,147,379.39 and 2,202,184.90
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Solution
The fourth proportional to 3,729,979.36, 5,147,379.39 and 2,202,184.90 is: 3,039,019.81
Step by Step Solution
- Step 1: Write the proportion equation
3,729,979.36 : 5,147,379.39 = 2,202,184.90 : x - Step 2: Convert to fraction form
3,729,979.36/5,147,379.39 = 2,202,184.90/x - Step 3: Cross multiply
3,729,979.36x = 5,147,379.39 × 2,202,184.90 - Step 4: Simplify right side
3,729,979.36x = 11,335,481,167,229.21 - Step 5: Solve for x
x = 11,335,481,167,229.21/3,729,979.36 - Step 6: Final answer
x = 3,039,019.81
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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.