Finding the Fourth Proportional to 5,338,310.76, 7,366,872.06 and 2,890,940.76
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Solution
The fourth proportional to 5,338,310.76, 7,366,872.06 and 2,890,940.76 is: 3,989,499.99
Step by Step Solution
- Step 1: Write the proportion equation
5,338,310.76 : 7,366,872.06 = 2,890,940.76 : x - Step 2: Convert to fraction form
5,338,310.76/7,366,872.06 = 2,890,940.76/x - Step 3: Cross multiply
5,338,310.76x = 7,366,872.06 × 2,890,940.76 - Step 4: Simplify right side
5,338,310.76x = 21,297,190,711,959.16 - Step 5: Solve for x
x = 21,297,190,711,959.16/5,338,310.76 - Step 6: Final answer
x = 3,989,499.99
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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.