Finding the Fourth Proportional to 3,615,439.36, 4,989,273.60 and 1,983,815.68
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Solution
The fourth proportional to 3,615,439.36, 4,989,273.60 and 1,983,815.68 is: 2,737,647.69
Step by Step Solution
- Step 1: Write the proportion equation
3,615,439.36 : 4,989,273.60 = 1,983,815.68 : x - Step 2: Convert to fraction form
3,615,439.36/4,989,273.60 = 1,983,815.68/x - Step 3: Cross multiply
3,615,439.36x = 4,989,273.60 × 1,983,815.68 - Step 4: Simplify right side
3,615,439.36x = 9,897,799,199,490.05 - Step 5: Solve for x
x = 9,897,799,199,490.05/3,615,439.36 - Step 6: Final answer
x = 2,737,647.69
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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.