Finding the Fourth Proportional to 21,715,512.24, 29,979,040.96 and 16,743,093.20
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Solution
The fourth proportional to 21,715,512.24, 29,979,040.96 and 16,743,093.20 is: 23,114,438.72
Step by Step Solution
- Step 1: Write the proportion equation
21,715,512.24 : 29,979,040.96 = 16,743,093.20 : x - Step 2: Convert to fraction form
21,715,512.24/29,979,040.96 = 16,743,093.20/x - Step 3: Cross multiply
21,715,512.24x = 29,979,040.96 × 16,743,093.20 - Step 4: Simplify right side
21,715,512.24x = 501,941,876,839,897.44 - Step 5: Solve for x
x = 501,941,876,839,897.44/21,715,512.24 - Step 6: Final answer
x = 23,114,438.72
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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.