Finding the Fourth Proportional to 18,284,286.70, 25,234,886.16 and 11,317,198.96
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Solution
The fourth proportional to 18,284,286.70, 25,234,886.16 and 11,317,198.96 is: 15,619,325.60
Step by Step Solution
- Step 1: Write the proportion equation
18,284,286.70 : 25,234,886.16 = 11,317,198.96 : x - Step 2: Convert to fraction form
18,284,286.70/25,234,886.16 = 11,317,198.96/x - Step 3: Cross multiply
18,284,286.70x = 25,234,886.16 × 11,317,198.96 - Step 4: Simplify right side
18,284,286.70x = 285,588,227,405,670.44 - Step 5: Solve for x
x = 285,588,227,405,670.44/18,284,286.70 - Step 6: Final answer
x = 15,619,325.60
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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.