Finding the Fourth Proportional to 3,828,105, 5,281,651.62 and 2,278,124.12
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Solution
The fourth proportional to 3,828,105, 5,281,651.62 and 2,278,124.12 is: 3,143,136.86
Step by Step Solution
- Step 1: Write the proportion equation
3,828,105 : 5,281,651.62 = 2,278,124.12 : x - Step 2: Convert to fraction form
3,828,105/5,281,651.62 = 2,278,124.12/x - Step 3: Cross multiply
3,828,105x = 5,281,651.62 × 2,278,124.12 - Step 4: Simplify right side
3,828,105x = 12,032,257,922,550.82 - Step 5: Solve for x
x = 12,032,257,922,550.82/3,828,105 - Step 6: Final answer
x = 3,143,136.86
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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.