Finding the Fourth Proportional to 121,244,453.93, 167,317,413.55 and 65,489,874.05
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Solution
The fourth proportional to 121,244,453.93, 167,317,413.55 and 65,489,874.05 is: 90,376,062.44
Step by Step Solution
- Step 1: Write the proportion equation
121,244,453.93 : 167,317,413.55 = 65,489,874.05 : x - Step 2: Convert to fraction form
121,244,453.93/167,317,413.55 = 65,489,874.05/x - Step 3: Cross multiply
121,244,453.93x = 167,317,413.55 × 65,489,874.05 - Step 4: Simplify right side
121,244,453.93x = 10,957,596,339,482,264 - Step 5: Solve for x
x = 10,957,596,339,482,264/121,244,453.93 - Step 6: Final answer
x = 90,376,062.44
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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.