Finding the Fourth Proportional to 3,926,084.11, 5,418,004.49 and 2,207,218.75
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Solution
The fourth proportional to 3,926,084.11, 5,418,004.49 and 2,207,218.75 is: 3,045,966.61
Step by Step Solution
- Step 1: Write the proportion equation
3,926,084.11 : 5,418,004.49 = 2,207,218.75 : x - Step 2: Convert to fraction form
3,926,084.11/5,418,004.49 = 2,207,218.75/x - Step 3: Cross multiply
3,926,084.11x = 5,418,004.49 × 2,207,218.75 - Step 4: Simplify right side
3,926,084.11x = 11,958,721,097,912.19 - Step 5: Solve for x
x = 11,958,721,097,912.19/3,926,084.11 - Step 6: Final answer
x = 3,045,966.61
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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.