Finding the Fourth Proportional to 18,135,067.40, 27,202,601.10 and 17,967,105.80
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Solution
The fourth proportional to 18,135,067.40, 27,202,601.10 and 17,967,105.80 is: 26,950,658.70
Step by Step Solution
- Step 1: Write the proportion equation
18,135,067.40 : 27,202,601.10 = 17,967,105.80 : x - Step 2: Convert to fraction form
18,135,067.40/27,202,601.10 = 17,967,105.80/x - Step 3: Cross multiply
18,135,067.40x = 27,202,601.10 × 17,967,105.80 - Step 4: Simplify right side
18,135,067.40x = 488,752,011,998,896.44 - Step 5: Solve for x
x = 488,752,011,998,896.44/18,135,067.40 - Step 6: Final answer
x = 26,950,658.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.