Finding the Fourth Proportional to 21,291,310.13, 29,382,034.10 and 11,501,754.12
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Solution
The fourth proportional to 21,291,310.13, 29,382,034.10 and 11,501,754.12 is: 15,872,434.80
Step by Step Solution
- Step 1: Write the proportion equation
21,291,310.13 : 29,382,034.10 = 11,501,754.12 : x - Step 2: Convert to fraction form
21,291,310.13/29,382,034.10 = 11,501,754.12/x - Step 3: Cross multiply
21,291,310.13x = 29,382,034.10 × 11,501,754.12 - Step 4: Simplify right side
21,291,310.13x = 337,944,931,706,146.69 - Step 5: Solve for x
x = 337,944,931,706,146.69/21,291,310.13 - Step 6: Final answer
x = 15,872,434.80
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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.