Finding the Fourth Proportional to 8,201,286.68, 11,219,418.28 and 8,166,743.42
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Solution
The fourth proportional to 8,201,286.68, 11,219,418.28 and 8,166,743.42 is: 11,172,162.86
Step by Step Solution
- Step 1: Write the proportion equation
8,201,286.68 : 11,219,418.28 = 8,166,743.42 : x - Step 2: Convert to fraction form
8,201,286.68/11,219,418.28 = 8,166,743.42/x - Step 3: Cross multiply
8,201,286.68x = 11,219,418.28 × 8,166,743.42 - Step 4: Simplify right side
8,201,286.68x = 91,626,110,414,417.72 - Step 5: Solve for x
x = 91,626,110,414,417.72/8,201,286.68 - Step 6: Final answer
x = 11,172,162.86
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.