Finding the Fourth Proportional to 3,825,366.79, 5,278,604.83 and 2,170,987.07
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Solution
The fourth proportional to 3,825,366.79, 5,278,604.83 and 2,170,987.07 is: 2,995,734.39
Step by Step Solution
- Step 1: Write the proportion equation
3,825,366.79 : 5,278,604.83 = 2,170,987.07 : x - Step 2: Convert to fraction form
3,825,366.79/5,278,604.83 = 2,170,987.07/x - Step 3: Cross multiply
3,825,366.79x = 5,278,604.83 × 2,170,987.07 - Step 4: Simplify right side
3,825,366.79x = 11,459,782,833,569.55 - Step 5: Solve for x
x = 11,459,782,833,569.55/3,825,366.79 - Step 6: Final answer
x = 2,995,734.39
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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.