Finding the Fourth Proportional to 18,126,976.62, 27,190,198.34 and 4,480,124.37
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Solution
The fourth proportional to 18,126,976.62, 27,190,198.34 and 4,480,124.37 is: 6,720,120.67
Step by Step Solution
- Step 1: Write the proportion equation
18,126,976.62 : 27,190,198.34 = 4,480,124.37 : x - Step 2: Convert to fraction form
18,126,976.62/27,190,198.34 = 4,480,124.37/x - Step 3: Cross multiply
18,126,976.62x = 27,190,198.34 × 4,480,124.37 - Step 4: Simplify right side
18,126,976.62x = 121,815,470,208,167.55 - Step 5: Solve for x
x = 121,815,470,208,167.55/18,126,976.62 - Step 6: Final answer
x = 6,720,120.67
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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.