Finding the Fourth Proportional to 12,198,107.96, 18,297,057.42 and 3,100,231.70
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Solution
The fourth proportional to 12,198,107.96, 18,297,057.42 and 3,100,231.70 is: 4,650,320.99
Step by Step Solution
- Step 1: Write the proportion equation
12,198,107.96 : 18,297,057.42 = 3,100,231.70 : x - Step 2: Convert to fraction form
12,198,107.96/18,297,057.42 = 3,100,231.70/x - Step 3: Cross multiply
12,198,107.96x = 18,297,057.42 × 3,100,231.70 - Step 4: Simplify right side
12,198,107.96x = 56,725,117,430,204.23 - Step 5: Solve for x
x = 56,725,117,430,204.23/12,198,107.96 - Step 6: Final answer
x = 4,650,320.99
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1.5x scale
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.