Finding the Fourth Proportional to 3,825,439.92, 5,278,991.70 and 2,106,569.70
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Solution
The fourth proportional to 3,825,439.92, 5,278,991.70 and 2,106,569.70 is: 2,907,002.64
Step by Step Solution
- Step 1: Write the proportion equation
3,825,439.92 : 5,278,991.70 = 2,106,569.70 : x - Step 2: Convert to fraction form
3,825,439.92/5,278,991.70 = 2,106,569.70/x - Step 3: Cross multiply
3,825,439.92x = 5,278,991.70 × 2,106,569.70 - Step 4: Simplify right side
3,825,439.92x = 11,120,563,961,771.49 - Step 5: Solve for x
x = 11,120,563,961,771.49/3,825,439.92 - Step 6: Final answer
x = 2,907,002.64
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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.