Finding the Fourth Proportional to 5,439,863.20, 8,161,023.60 and 3,194,845.60
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Solution
The fourth proportional to 5,439,863.20, 8,161,023.60 and 3,194,845.60 is: 4,792,990.08
Step by Step Solution
- Step 1: Write the proportion equation
5,439,863.20 : 8,161,023.60 = 3,194,845.60 : x - Step 2: Convert to fraction form
5,439,863.20/8,161,023.60 = 3,194,845.60/x - Step 3: Cross multiply
5,439,863.20x = 8,161,023.60 × 3,194,845.60 - Step 4: Simplify right side
5,439,863.20x = 26,073,210,339,956.16 - Step 5: Solve for x
x = 26,073,210,339,956.16/5,439,863.20 - Step 6: Final answer
x = 4,792,990.08
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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.