Finding the Fourth Proportional to 3,966,107.56, 5,474,902.79 and 2,678,691.74
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Solution
The fourth proportional to 3,966,107.56, 5,474,902.79 and 2,678,691.74 is: 3,697,725.45
Step by Step Solution
- Step 1: Write the proportion equation
3,966,107.56 : 5,474,902.79 = 2,678,691.74 : x - Step 2: Convert to fraction form
3,966,107.56/5,474,902.79 = 2,678,691.74/x - Step 3: Cross multiply
3,966,107.56x = 5,474,902.79 × 2,678,691.74 - Step 4: Simplify right side
3,966,107.56x = 14,665,576,860,198.17 - Step 5: Solve for x
x = 14,665,576,860,198.17/3,966,107.56 - Step 6: Final answer
x = 3,697,725.45
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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.