Finding the Fourth Proportional to 18,517,769.09, 27,794,581.57 and 8,939,868.20
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Solution
The fourth proportional to 18,517,769.09, 27,794,581.57 and 8,939,868.20 is: 13,418,457.41
Step by Step Solution
- Step 1: Write the proportion equation
18,517,769.09 : 27,794,581.57 = 8,939,868.20 : x - Step 2: Convert to fraction form
18,517,769.09/27,794,581.57 = 8,939,868.20/x - Step 3: Cross multiply
18,517,769.09x = 27,794,581.57 × 8,939,868.20 - Step 4: Simplify right side
18,517,769.09x = 248,479,895,865,249.72 - Step 5: Solve for x
x = 248,479,895,865,249.72/18,517,769.09 - Step 6: Final answer
x = 13,418,457.41
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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.