Finding the Fourth Proportional to 3,290,198.85, 4,540,389.46 and 1,820,069.09
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Solution
The fourth proportional to 3,290,198.85, 4,540,389.46 and 1,820,069.09 is: 2,511,648.35
Step by Step Solution
- Step 1: Write the proportion equation
3,290,198.85 : 4,540,389.46 = 1,820,069.09 : x - Step 2: Convert to fraction form
3,290,198.85/4,540,389.46 = 1,820,069.09/x - Step 3: Cross multiply
3,290,198.85x = 4,540,389.46 × 1,820,069.09 - Step 4: Simplify right side
3,290,198.85x = 8,263,822,502,482.13 - Step 5: Solve for x
x = 8,263,822,502,482.13/3,290,198.85 - Step 6: Final answer
x = 2,511,648.35
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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.