Finding the Fourth Proportional to 216,660,413.99, 298,991,950.84 and 117,541,161.39
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Solution
The fourth proportional to 216,660,413.99, 298,991,950.84 and 117,541,161.39 is: 162,207,117.12
Step by Step Solution
- Step 1: Write the proportion equation
216,660,413.99 : 298,991,950.84 = 117,541,161.39 : x - Step 2: Convert to fraction form
216,660,413.99/298,991,950.84 = 117,541,161.39/x - Step 3: Cross multiply
216,660,413.99x = 298,991,950.84 × 117,541,161.39 - Step 4: Simplify right side
216,660,413.99x = 35,143,861,146,998,240 - Step 5: Solve for x
x = 35,143,861,146,998,240/216,660,413.99 - Step 6: Final answer
x = 162,207,117.12
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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.