Finding the Fourth Proportional to 5,542,621.20, 8,312,203.80 and 2,177,859.60
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Solution
The fourth proportional to 5,542,621.20, 8,312,203.80 and 2,177,859.60 is: 3,266,110.42
Step by Step Solution
- Step 1: Write the proportion equation
5,542,621.20 : 8,312,203.80 = 2,177,859.60 : x - Step 2: Convert to fraction form
5,542,621.20/8,312,203.80 = 2,177,859.60/x - Step 3: Cross multiply
5,542,621.20x = 8,312,203.80 × 2,177,859.60 - Step 4: Simplify right side
5,542,621.20x = 18,102,812,842,986.48 - Step 5: Solve for x
x = 18,102,812,842,986.48/5,542,621.20 - Step 6: Final answer
x = 3,266,110.42
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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.