Finding the Fourth Proportional to 281,770,719.62, 388,799,741.95 and 161,066,984.08
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Solution
The fourth proportional to 281,770,719.62, 388,799,741.95 and 161,066,984.08 is: 222,247,371.66
Step by Step Solution
- Step 1: Write the proportion equation
281,770,719.62 : 388,799,741.95 = 161,066,984.08 : x - Step 2: Convert to fraction form
281,770,719.62/388,799,741.95 = 161,066,984.08/x - Step 3: Cross multiply
281,770,719.62x = 388,799,741.95 × 161,066,984.08 - Step 4: Simplify right side
281,770,719.62x = 62,622,801,846,968,760 - Step 5: Solve for x
x = 62,622,801,846,968,760/281,770,719.62 - Step 6: Final answer
x = 222,247,371.66
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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.