Finding the Fourth Proportional to 21,647,436, 29,862,135.70 and 13,384,857.07
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Solution
The fourth proportional to 21,647,436, 29,862,135.70 and 13,384,857.07 is: 18,464,099.77
Step by Step Solution
- Step 1: Write the proportion equation
21,647,436 : 29,862,135.70 = 13,384,857.07 : x - Step 2: Convert to fraction form
21,647,436/29,862,135.70 = 13,384,857.07/x - Step 3: Cross multiply
21,647,436x = 29,862,135.70 × 13,384,857.07 - Step 4: Simplify right side
21,647,436x = 399,700,418,149,444.38 - Step 5: Solve for x
x = 399,700,418,149,444.38/21,647,436 - Step 6: Final answer
x = 18,464,099.77
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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.