Finding the Fourth Proportional to 3,847,676.48, 5,309,949.84 and 2,128,769.04
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Solution
The fourth proportional to 3,847,676.48, 5,309,949.84 and 2,128,769.04 is: 2,937,787.75
Step by Step Solution
- Step 1: Write the proportion equation
3,847,676.48 : 5,309,949.84 = 2,128,769.04 : x - Step 2: Convert to fraction form
3,847,676.48/5,309,949.84 = 2,128,769.04/x - Step 3: Cross multiply
3,847,676.48x = 5,309,949.84 × 2,128,769.04 - Step 4: Simplify right side
3,847,676.48x = 11,303,656,823,344.95 - Step 5: Solve for x
x = 11,303,656,823,344.95/3,847,676.48 - Step 6: Final answer
x = 2,937,787.75
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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.