Finding the Fourth Proportional to 15,226,161.26, 21,013,431.44 and 8,351,971.92
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Solution
The fourth proportional to 15,226,161.26, 21,013,431.44 and 8,351,971.92 is: 11,526,450.19
Step by Step Solution
- Step 1: Write the proportion equation
15,226,161.26 : 21,013,431.44 = 8,351,971.92 : x - Step 2: Convert to fraction form
15,226,161.26/21,013,431.44 = 8,351,971.92/x - Step 3: Cross multiply
15,226,161.26x = 21,013,431.44 × 8,351,971.92 - Step 4: Simplify right side
15,226,161.26x = 175,503,589,287,965.28 - Step 5: Solve for x
x = 175,503,589,287,965.28/15,226,161.26 - Step 6: Final answer
x = 11,526,450.19
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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.