Finding the Fourth Proportional to 5,776,538.22, 7,972,157.57 and 3,198,218.99
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Solution
The fourth proportional to 5,776,538.22, 7,972,157.57 and 3,198,218.99 is: 4,413,838.31
Step by Step Solution
- Step 1: Write the proportion equation
5,776,538.22 : 7,972,157.57 = 3,198,218.99 : x - Step 2: Convert to fraction form
5,776,538.22/7,972,157.57 = 3,198,218.99/x - Step 3: Cross multiply
5,776,538.22x = 7,972,157.57 × 3,198,218.99 - Step 4: Simplify right side
5,776,538.22x = 25,496,705,675,794.37 - Step 5: Solve for x
x = 25,496,705,675,794.37/5,776,538.22 - Step 6: Final answer
x = 4,413,838.31
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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.