Finding the Fourth Proportional to 18,154,231.20, 27,231,346.80 and 6,639,676.20
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Solution
The fourth proportional to 18,154,231.20, 27,231,346.80 and 6,639,676.20 is: 9,959,514.30
Step by Step Solution
- Step 1: Write the proportion equation
18,154,231.20 : 27,231,346.80 = 6,639,676.20 : x - Step 2: Convert to fraction form
18,154,231.20/27,231,346.80 = 6,639,676.20/x - Step 3: Cross multiply
18,154,231.20x = 27,231,346.80 × 6,639,676.20 - Step 4: Simplify right side
18,154,231.20x = 180,807,325,241,906.16 - Step 5: Solve for x
x = 180,807,325,241,906.16/18,154,231.20 - Step 6: Final answer
x = 9,959,514.30
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1.5x scale
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.