Finding the Fourth Proportional to 4,987,991.78, 6,883,505.25 and 2,922,513.05
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Solution
The fourth proportional to 4,987,991.78, 6,883,505.25 and 2,922,513.05 is: 4,033,112.88
Step by Step Solution
- Step 1: Write the proportion equation
4,987,991.78 : 6,883,505.25 = 2,922,513.05 : x - Step 2: Convert to fraction form
4,987,991.78/6,883,505.25 = 2,922,513.05/x - Step 3: Cross multiply
4,987,991.78x = 6,883,505.25 × 2,922,513.05 - Step 4: Simplify right side
4,987,991.78x = 20,117,133,888,450.98 - Step 5: Solve for x
x = 20,117,133,888,450.98/4,987,991.78 - Step 6: Final answer
x = 4,033,112.88
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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.