Finding the Fourth Proportional to 4,263,939.20, 6,385,411.20 and 2,836,265.60
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Solution
The fourth proportional to 4,263,939.20, 6,385,411.20 and 2,836,265.60 is: 4,247,415.66
Step by Step Solution
- Step 1: Write the proportion equation
4,263,939.20 : 6,385,411.20 = 2,836,265.60 : x - Step 2: Convert to fraction form
4,263,939.20/6,385,411.20 = 2,836,265.60/x - Step 3: Cross multiply
4,263,939.20x = 6,385,411.20 × 2,836,265.60 - Step 4: Simplify right side
4,263,939.20x = 18,110,722,128,414.72 - Step 5: Solve for x
x = 18,110,722,128,414.72/4,263,939.20 - Step 6: Final answer
x = 4,247,415.66
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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.