Finding the Fourth Proportional to 4,198,434.05, 5,791,616.87 and 2,889,413.49
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Solution
The fourth proportional to 4,198,434.05, 5,791,616.87 and 2,889,413.49 is: 3,985,861.34
Step by Step Solution
- Step 1: Write the proportion equation
4,198,434.05 : 5,791,616.87 = 2,889,413.49 : x - Step 2: Convert to fraction form
4,198,434.05/5,791,616.87 = 2,889,413.49/x - Step 3: Cross multiply
4,198,434.05x = 5,791,616.87 × 2,889,413.49 - Step 4: Simplify right side
4,198,434.05x = 16,734,375,944,735.42 - Step 5: Solve for x
x = 16,734,375,944,735.42/4,198,434.05 - Step 6: Final answer
x = 3,985,861.34
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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.