Finding the Fourth Proportional to 3,910,791.84, 5,396,800.44 and 2,168,452.68
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Solution
The fourth proportional to 3,910,791.84, 5,396,800.44 and 2,168,452.68 is: 2,992,413.52
Step by Step Solution
- Step 1: Write the proportion equation
3,910,791.84 : 5,396,800.44 = 2,168,452.68 : x - Step 2: Convert to fraction form
3,910,791.84/5,396,800.44 = 2,168,452.68/x - Step 3: Cross multiply
3,910,791.84x = 5,396,800.44 × 2,168,452.68 - Step 4: Simplify right side
3,910,791.84x = 11,702,706,377,543.18 - Step 5: Solve for x
x = 11,702,706,377,543.18/3,910,791.84 - Step 6: Final answer
x = 2,992,413.52
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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.