Finding the Fourth Proportional to 5,261,937.75, 7,261,474.10 and 2,847,489.75
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Solution
The fourth proportional to 5,261,937.75, 7,261,474.10 and 2,847,489.75 is: 3,929,535.86
Step by Step Solution
- Step 1: Write the proportion equation
5,261,937.75 : 7,261,474.10 = 2,847,489.75 : x - Step 2: Convert to fraction form
5,261,937.75/7,261,474.10 = 2,847,489.75/x - Step 3: Cross multiply
5,261,937.75x = 7,261,474.10 × 2,847,489.75 - Step 4: Simplify right side
5,261,937.75x = 20,676,973,055,403.03 - Step 5: Solve for x
x = 20,676,973,055,403.03/5,261,937.75 - Step 6: Final answer
x = 3,929,535.86
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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.