Finding the Fourth Proportional to 18,321,728.60, 27,480,624.60 and 4,858,556.60
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Solution
The fourth proportional to 18,321,728.60, 27,480,624.60 and 4,858,556.60 is: 7,287,312.95
Step by Step Solution
- Step 1: Write the proportion equation
18,321,728.60 : 27,480,624.60 = 4,858,556.60 : x - Step 2: Convert to fraction form
18,321,728.60/27,480,624.60 = 4,858,556.60/x - Step 3: Cross multiply
18,321,728.60x = 27,480,624.60 × 4,858,556.60 - Step 4: Simplify right side
18,321,728.60x = 133,516,170,022,452.36 - Step 5: Solve for x
x = 133,516,170,022,452.36/18,321,728.60 - Step 6: Final answer
x = 7,287,312.95
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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.