Finding the Fourth Proportional to 21,860,413.20, 32,790,619.80 and 8,397,565.20
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Solution
The fourth proportional to 21,860,413.20, 32,790,619.80 and 8,397,565.20 is: 12,596,347.80
Step by Step Solution
- Step 1: Write the proportion equation
21,860,413.20 : 32,790,619.80 = 8,397,565.20 : x - Step 2: Convert to fraction form
21,860,413.20/32,790,619.80 = 8,397,565.20/x - Step 3: Cross multiply
21,860,413.20x = 32,790,619.80 × 8,397,565.20 - Step 4: Simplify right side
21,860,413.20x = 275,361,367,718,910.94 - Step 5: Solve for x
x = 275,361,367,718,910.94/21,860,413.20 - Step 6: Final answer
x = 12,596,347.80
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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.