Finding the Fourth Proportional to 198,694,315.20, 274,204,251.20 and 110,593,207.20
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Solution
The fourth proportional to 198,694,315.20, 274,204,251.20 and 110,593,207.20 is: 152,622,019.09
Step by Step Solution
- Step 1: Write the proportion equation
198,694,315.20 : 274,204,251.20 = 110,593,207.20 : x - Step 2: Convert to fraction form
198,694,315.20/274,204,251.20 = 110,593,207.20/x - Step 3: Cross multiply
198,694,315.20x = 274,204,251.20 × 110,593,207.20 - Step 4: Simplify right side
198,694,315.20x = 30,325,127,568,082,448 - Step 5: Solve for x
x = 30,325,127,568,082,448/198,694,315.20 - Step 6: Final answer
x = 152,622,019.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.