Finding the Fourth Proportional to 4,987,396.53, 6,882,469.56 and 2,811,920.67
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Solution
The fourth proportional to 4,987,396.53, 6,882,469.56 and 2,811,920.67 is: 3,880,372.92
Step by Step Solution
- Step 1: Write the proportion equation
4,987,396.53 : 6,882,469.56 = 2,811,920.67 : x - Step 2: Convert to fraction form
4,987,396.53/6,882,469.56 = 2,811,920.67/x - Step 3: Cross multiply
4,987,396.53x = 6,882,469.56 × 2,811,920.67 - Step 4: Simplify right side
4,987,396.53x = 19,352,958,416,409.80 - Step 5: Solve for x
x = 19,352,958,416,409.80/4,987,396.53 - Step 6: Final answer
x = 3,880,372.92
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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.