Finding the Fourth Proportional to 306,450,413.52, 422,902,639.08 and 167,224,243.92
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Solution
The fourth proportional to 306,450,413.52, 422,902,639.08 and 167,224,243.92 is: 230,770,039.63
Step by Step Solution
- Step 1: Write the proportion equation
306,450,413.52 : 422,902,639.08 = 167,224,243.92 : x - Step 2: Convert to fraction form
306,450,413.52/422,902,639.08 = 167,224,243.92/x - Step 3: Cross multiply
306,450,413.52x = 422,902,639.08 × 167,224,243.92 - Step 4: Simplify right side
306,450,413.52x = 70,719,574,071,925,640 - Step 5: Solve for x
x = 70,719,574,071,925,640/306,450,413.52 - Step 6: Final answer
x = 230,770,039.63
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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.