Finding the Fourth Proportional to 3,999,470.62, 5,519,230.18 and 2,163,888.62
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Solution
The fourth proportional to 3,999,470.62, 5,519,230.18 and 2,163,888.62 is: 2,986,145.05
Step by Step Solution
- Step 1: Write the proportion equation
3,999,470.62 : 5,519,230.18 = 2,163,888.62 : x - Step 2: Convert to fraction form
3,999,470.62/5,519,230.18 = 2,163,888.62/x - Step 3: Cross multiply
3,999,470.62x = 5,519,230.18 × 2,163,888.62 - Step 4: Simplify right side
3,999,470.62x = 11,942,999,377,662.55 - Step 5: Solve for x
x = 11,942,999,377,662.55/3,999,470.62 - Step 6: Final answer
x = 2,986,145.05
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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.