Finding the Fourth Proportional to 3,939,107.07, 5,440,451.79 and 2,647,705.44
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Solution
The fourth proportional to 3,939,107.07, 5,440,451.79 and 2,647,705.44 is: 3,656,847.49
Step by Step Solution
- Step 1: Write the proportion equation
3,939,107.07 : 5,440,451.79 = 2,647,705.44 : x - Step 2: Convert to fraction form
3,939,107.07/5,440,451.79 = 2,647,705.44/x - Step 3: Cross multiply
3,939,107.07x = 5,440,451.79 × 2,647,705.44 - Step 4: Simplify right side
3,939,107.07x = 14,404,713,800,440.74 - Step 5: Solve for x
x = 14,404,713,800,440.74/3,939,107.07 - Step 6: Final answer
x = 3,656,847.49
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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.