Finding the Fourth Proportional to 18,212,364.60, 27,315,047.70 and 5,433,286.20
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Solution
The fourth proportional to 18,212,364.60, 27,315,047.70 and 5,433,286.20 is: 8,148,885.39
Step by Step Solution
- Step 1: Write the proportion equation
18,212,364.60 : 27,315,047.70 = 5,433,286.20 : x - Step 2: Convert to fraction form
18,212,364.60/27,315,047.70 = 5,433,286.20/x - Step 3: Cross multiply
18,212,364.60x = 27,315,047.70 × 5,433,286.20 - Step 4: Simplify right side
18,212,364.60x = 148,410,471,720,751.75 - Step 5: Solve for x
x = 148,410,471,720,751.75/18,212,364.60 - Step 6: Final answer
x = 8,148,885.39
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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.