Finding the Fourth Proportional to 8,142,425.08, 11,236,556.58 and 4,471,578.28
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Solution
The fourth proportional to 8,142,425.08, 11,236,556.58 and 4,471,578.28 is: 6,170,783.50
Step by Step Solution
- Step 1: Write the proportion equation
8,142,425.08 : 11,236,556.58 = 4,471,578.28 : x - Step 2: Convert to fraction form
8,142,425.08/11,236,556.58 = 4,471,578.28/x - Step 3: Cross multiply
8,142,425.08x = 11,236,556.58 × 4,471,578.28 - Step 4: Simplify right side
8,142,425.08x = 50,245,142,345,119.09 - Step 5: Solve for x
x = 50,245,142,345,119.09/8,142,425.08 - Step 6: Final answer
x = 6,170,783.50
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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.