Finding the Fourth Proportional to 3,613,954.70, 4,987,413.88 and 2,163,369.44
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Solution
The fourth proportional to 3,613,954.70, 4,987,413.88 and 2,163,369.44 is: 2,985,543.45
Step by Step Solution
- Step 1: Write the proportion equation
3,613,954.70 : 4,987,413.88 = 2,163,369.44 : x - Step 2: Convert to fraction form
3,613,954.70/4,987,413.88 = 2,163,369.44/x - Step 3: Cross multiply
3,613,954.70x = 4,987,413.88 × 2,163,369.44 - Step 4: Simplify right side
3,613,954.70x = 10,789,618,772,623.83 - Step 5: Solve for x
x = 10,789,618,772,623.83/3,613,954.70 - Step 6: Final answer
x = 2,985,543.45
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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.