Finding the Fourth Proportional to 284,419,338.68, 426,629,008.12 and 79,947,413.92
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Solution
The fourth proportional to 284,419,338.68, 426,629,008.12 and 79,947,413.92 is: 119,921,120.91
Step by Step Solution
- Step 1: Write the proportion equation
284,419,338.68 : 426,629,008.12 = 79,947,413.92 : x - Step 2: Convert to fraction form
284,419,338.68/426,629,008.12 = 79,947,413.92/x - Step 3: Cross multiply
284,419,338.68x = 426,629,008.12 × 79,947,413.92 - Step 4: Simplify right side
284,419,338.68x = 34,107,885,902,448,684 - Step 5: Solve for x
x = 34,107,885,902,448,684/284,419,338.68 - Step 6: Final answer
x = 119,921,120.91
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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.