Finding the Fourth Proportional to 21,235,232.12, 29,304,568.14 and 12,067,863.80
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Solution
The fourth proportional to 21,235,232.12, 29,304,568.14 and 12,067,863.80 is: 16,653,622.39
Step by Step Solution
- Step 1: Write the proportion equation
21,235,232.12 : 29,304,568.14 = 12,067,863.80 : x - Step 2: Convert to fraction form
21,235,232.12/29,304,568.14 = 12,067,863.80/x - Step 3: Cross multiply
21,235,232.12x = 29,304,568.14 × 12,067,863.80 - Step 4: Simplify right side
21,235,232.12x = 353,643,537,031,339.38 - Step 5: Solve for x
x = 353,643,537,031,339.38/21,235,232.12 - Step 6: Final answer
x = 16,653,622.39
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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.