Finding the Fourth Proportional to 5,542,390.20, 8,311,857.30 and 2,177,628.60
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Solution
The fourth proportional to 5,542,390.20, 8,311,857.30 and 2,177,628.60 is: 3,265,763.96
Step by Step Solution
- Step 1: Write the proportion equation
5,542,390.20 : 8,311,857.30 = 2,177,628.60 : x - Step 2: Convert to fraction form
5,542,390.20/8,311,857.30 = 2,177,628.60/x - Step 3: Cross multiply
5,542,390.20x = 8,311,857.30 × 2,177,628.60 - Step 4: Simplify right side
5,542,390.20x = 18,100,138,175,598.78 - Step 5: Solve for x
x = 18,100,138,175,598.78/5,542,390.20 - Step 6: Final answer
x = 3,265,763.96
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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.