Finding the Fourth Proportional to 3,989,473.73, 5,501,736.65 and 3,176,361.53
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Solution
The fourth proportional to 3,989,473.73, 5,501,736.65 and 3,176,361.53 is: 4,380,403.48
Step by Step Solution
- Step 1: Write the proportion equation
3,989,473.73 : 5,501,736.65 = 3,176,361.53 : x - Step 2: Convert to fraction form
3,989,473.73/5,501,736.65 = 3,176,361.53/x - Step 3: Cross multiply
3,989,473.73x = 5,501,736.65 × 3,176,361.53 - Step 4: Simplify right side
3,989,473.73x = 17,475,504,627,369.26 - Step 5: Solve for x
x = 17,475,504,627,369.26/3,989,473.73 - Step 6: Final answer
x = 4,380,403.48
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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.