Finding the Fourth Proportional to 5,278,600.60, 7,921,881.54 and 3,862,310.68
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Solution
The fourth proportional to 5,278,600.60, 7,921,881.54 and 3,862,310.68 is: 5,796,378.62
Step by Step Solution
- Step 1: Write the proportion equation
5,278,600.60 : 7,921,881.54 = 3,862,310.68 : x - Step 2: Convert to fraction form
5,278,600.60/7,921,881.54 = 3,862,310.68/x - Step 3: Cross multiply
5,278,600.60x = 7,921,881.54 × 3,862,310.68 - Step 4: Simplify right side
5,278,600.60x = 30,596,767,677,636.85 - Step 5: Solve for x
x = 30,596,767,677,636.85/5,278,600.60 - Step 6: Final answer
x = 5,796,378.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.