Finding the Fourth Proportional to 11,242,571.97, 15,528,582.96 and 8,140,183.68
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Solution
The fourth proportional to 11,242,571.97, 15,528,582.96 and 8,140,183.68 is: 11,243,469.73
Step by Step Solution
- Step 1: Write the proportion equation
11,242,571.97 : 15,528,582.96 = 8,140,183.68 : x - Step 2: Convert to fraction form
11,242,571.97/15,528,582.96 = 8,140,183.68/x - Step 3: Cross multiply
11,242,571.97x = 15,528,582.96 × 8,140,183.68 - Step 4: Simplify right side
11,242,571.97x = 126,405,517,584,518.09 - Step 5: Solve for x
x = 126,405,517,584,518.09/11,242,571.97 - Step 6: Final answer
x = 11,243,469.73
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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.