Finding the Fourth Proportional to 7,971,608.70, 11,957,413.05 and 2,214,331.20
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Solution
The fourth proportional to 7,971,608.70, 11,957,413.05 and 2,214,331.20 is: 3,321,496.80
Step by Step Solution
- Step 1: Write the proportion equation
7,971,608.70 : 11,957,413.05 = 2,214,331.20 : x - Step 2: Convert to fraction form
7,971,608.70/11,957,413.05 = 2,214,331.20/x - Step 3: Cross multiply
7,971,608.70x = 11,957,413.05 × 2,214,331.20 - Step 4: Simplify right side
7,971,608.70x = 26,477,672,787,902.16 - Step 5: Solve for x
x = 26,477,672,787,902.16/7,971,608.70 - Step 6: Final answer
x = 3,321,496.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.