Finding the Fourth Proportional to 3,868,257.40, 5,336,972.94 and 2,319,200.44
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Solution
The fourth proportional to 3,868,257.40, 5,336,972.94 and 2,319,200.44 is: 3,199,763.80
Step by Step Solution
- Step 1: Write the proportion equation
3,868,257.40 : 5,336,972.94 = 2,319,200.44 : x - Step 2: Convert to fraction form
3,868,257.40/5,336,972.94 = 2,319,200.44/x - Step 3: Cross multiply
3,868,257.40x = 5,336,972.94 × 2,319,200.44 - Step 4: Simplify right side
3,868,257.40x = 12,377,509,990,716.09 - Step 5: Solve for x
x = 12,377,509,990,716.09/3,868,257.40 - Step 6: Final answer
x = 3,199,763.80
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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.