Finding the Fourth Proportional to 21,335,168.70, 29,442,531.84 and 11,545,613.18
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Solution
The fourth proportional to 21,335,168.70, 29,442,531.84 and 11,545,613.18 is: 15,932,945.67
Step by Step Solution
- Step 1: Write the proportion equation
21,335,168.70 : 29,442,531.84 = 11,545,613.18 : x - Step 2: Convert to fraction form
21,335,168.70/29,442,531.84 = 11,545,613.18/x - Step 3: Cross multiply
21,335,168.70x = 29,442,531.84 × 11,545,613.18 - Step 4: Simplify right side
21,335,168.70x = 339,932,083,664,473.62 - Step 5: Solve for x
x = 339,932,083,664,473.62/21,335,168.70 - Step 6: Final answer
x = 15,932,945.67
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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.