Finding the Fourth Proportional to 25,418,716.21, 35,078,063.21 and 13,816,306.99
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Solution
The fourth proportional to 25,418,716.21, 35,078,063.21 and 13,816,306.99 is: 19,066,631.29
Step by Step Solution
- Step 1: Write the proportion equation
25,418,716.21 : 35,078,063.21 = 13,816,306.99 : x - Step 2: Convert to fraction form
25,418,716.21/35,078,063.21 = 13,816,306.99/x - Step 3: Cross multiply
25,418,716.21x = 35,078,063.21 × 13,816,306.99 - Step 4: Simplify right side
25,418,716.21x = 484,649,289,923,984.88 - Step 5: Solve for x
x = 484,649,289,923,984.88/25,418,716.21 - Step 6: Final answer
x = 19,066,631.29
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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.