Finding the Fourth Proportional to 3,996,414.75, 5,515,183.58 and 2,185,578.75
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Solution
The fourth proportional to 3,996,414.75, 5,515,183.58 and 2,185,578.75 is: 3,016,170.44
Step by Step Solution
- Step 1: Write the proportion equation
3,996,414.75 : 5,515,183.58 = 2,185,578.75 : x - Step 2: Convert to fraction form
3,996,414.75/5,515,183.58 = 2,185,578.75/x - Step 3: Cross multiply
3,996,414.75x = 5,515,183.58 × 2,185,578.75 - Step 4: Simplify right side
3,996,414.75x = 12,053,868,023,869.03 - Step 5: Solve for x
x = 12,053,868,023,869.03/3,996,414.75 - Step 6: Final answer
x = 3,016,170.44
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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.