Finding the Fourth Proportional to 161,286,413.80, 241,929,620.70 and 115,936,781.80
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Solution
The fourth proportional to 161,286,413.80, 241,929,620.70 and 115,936,781.80 is: 173,905,172.70
Step by Step Solution
- Step 1: Write the proportion equation
161,286,413.80 : 241,929,620.70 = 115,936,781.80 : x - Step 2: Convert to fraction form
161,286,413.80/241,929,620.70 = 115,936,781.80/x - Step 3: Cross multiply
161,286,413.80x = 241,929,620.70 × 115,936,781.80 - Step 4: Simplify right side
161,286,413.80x = 28,048,541,646,052,660 - Step 5: Solve for x
x = 28,048,541,646,052,660/161,286,413.80 - Step 6: Final answer
x = 173,905,172.70
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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.