Finding the Fourth Proportional to 21,988,586.22, 30,347,891.09 and 12,202,173.91
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Solution
The fourth proportional to 21,988,586.22, 30,347,891.09 and 12,202,173.91 is: 16,841,021.12
Step by Step Solution
- Step 1: Write the proportion equation
21,988,586.22 : 30,347,891.09 = 12,202,173.91 : x - Step 2: Convert to fraction form
21,988,586.22/30,347,891.09 = 12,202,173.91/x - Step 3: Cross multiply
21,988,586.22x = 30,347,891.09 × 12,202,173.91 - Step 4: Simplify right side
21,988,586.22x = 370,310,244,881,919.44 - Step 5: Solve for x
x = 370,310,244,881,919.44/21,988,586.22 - Step 6: Final answer
x = 16,841,021.12
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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.