Finding the Fourth Proportional to 3,889,272.33, 5,366,553.84 and 2,170,388.70
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Solution
The fourth proportional to 3,889,272.33, 5,366,553.84 and 2,170,388.70 is: 2,994,778.15
Step by Step Solution
- Step 1: Write the proportion equation
3,889,272.33 : 5,366,553.84 = 2,170,388.70 : x - Step 2: Convert to fraction form
3,889,272.33/5,366,553.84 = 2,170,388.70/x - Step 3: Cross multiply
3,889,272.33x = 5,366,553.84 × 2,170,388.70 - Step 4: Simplify right side
3,889,272.33x = 11,647,507,812,277.61 - Step 5: Solve for x
x = 11,647,507,812,277.61/3,889,272.33 - Step 6: Final answer
x = 2,994,778.15
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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.