Finding the Fourth Proportional to 18,504,494.11, 27,747,748.80 and 9,278,503.09
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Solution
The fourth proportional to 18,504,494.11, 27,747,748.80 and 9,278,503.09 is: 13,913,245.69
Step by Step Solution
- Step 1: Write the proportion equation
18,504,494.11 : 27,747,748.80 = 9,278,503.09 : x - Step 2: Convert to fraction form
18,504,494.11/27,747,748.80 = 9,278,503.09/x - Step 3: Cross multiply
18,504,494.11x = 27,747,748.80 × 9,278,503.09 - Step 4: Simplify right side
18,504,494.11x = 257,457,572,981,343.78 - Step 5: Solve for x
x = 257,457,572,981,343.78/18,504,494.11 - Step 6: Final answer
x = 13,913,245.69
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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.