Finding the Fourth Proportional to 5,278,767.70, 7,914,943.95 and 2,080,207.30
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Solution
The fourth proportional to 5,278,767.70, 7,914,943.95 and 2,080,207.30 is: 3,119,046.93
Step by Step Solution
- Step 1: Write the proportion equation
5,278,767.70 : 7,914,943.95 = 2,080,207.30 : x - Step 2: Convert to fraction form
5,278,767.70/7,914,943.95 = 2,080,207.30/x - Step 3: Cross multiply
5,278,767.70x = 7,914,943.95 × 2,080,207.30 - Step 4: Simplify right side
5,278,767.70x = 16,464,724,183,880.84 - Step 5: Solve for x
x = 16,464,724,183,880.84/5,278,767.70 - Step 6: Final answer
x = 3,119,046.93
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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.