Finding the Fourth Proportional to 248,361,813.70, 342,723,859.97 and 136,846,413.99
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Solution
The fourth proportional to 248,361,813.70, 342,723,859.97 and 136,846,413.99 is: 188,839,542.31
Step by Step Solution
- Step 1: Write the proportion equation
248,361,813.70 : 342,723,859.97 = 136,846,413.99 : x - Step 2: Convert to fraction form
248,361,813.70/342,723,859.97 = 136,846,413.99/x - Step 3: Cross multiply
248,361,813.70x = 342,723,859.97 × 136,846,413.99 - Step 4: Simplify right side
248,361,813.70x = 46,900,531,225,021,176 - Step 5: Solve for x
x = 46,900,531,225,021,176/248,361,813.70 - Step 6: Final answer
x = 188,839,542.31
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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.