Finding the Fourth Proportional to 12,179,481.21, 18,269,214.81 and 11,372,356.08
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Solution
The fourth proportional to 12,179,481.21, 18,269,214.81 and 11,372,356.08 is: 17,058,527.58
Step by Step Solution
- Step 1: Write the proportion equation
12,179,481.21 : 18,269,214.81 = 11,372,356.08 : x - Step 2: Convert to fraction form
12,179,481.21/18,269,214.81 = 11,372,356.08/x - Step 3: Cross multiply
12,179,481.21x = 18,269,214.81 × 11,372,356.08 - Step 4: Simplify right side
12,179,481.21x = 207,764,016,121,329.53 - Step 5: Solve for x
x = 207,764,016,121,329.53/12,179,481.21 - Step 6: Final answer
x = 17,058,527.58
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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.