Finding the Fourth Proportional to 11,081,968.40, 16,635,394.20 and 8,568,765.20
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Solution
The fourth proportional to 11,081,968.40, 16,635,394.20 and 8,568,765.20 is: 12,862,767.86
Step by Step Solution
- Step 1: Write the proportion equation
11,081,968.40 : 16,635,394.20 = 8,568,765.20 : x - Step 2: Convert to fraction form
11,081,968.40/16,635,394.20 = 8,568,765.20/x - Step 3: Cross multiply
11,081,968.40x = 16,635,394.20 × 8,568,765.20 - Step 4: Simplify right side
11,081,968.40x = 142,544,786,909,241.81 - Step 5: Solve for x
x = 142,544,786,909,241.81/11,081,968.40 - Step 6: Final answer
x = 12,862,767.86
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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.