Finding the Fourth Proportional to 3,813,638.76, 5,720,458.20 and 1,418,086.44
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Solution
The fourth proportional to 3,813,638.76, 5,720,458.20 and 1,418,086.44 is: 2,127,129.68
Step by Step Solution
- Step 1: Write the proportion equation
3,813,638.76 : 5,720,458.20 = 1,418,086.44 : x - Step 2: Convert to fraction form
3,813,638.76/5,720,458.20 = 1,418,086.44/x - Step 3: Cross multiply
3,813,638.76x = 5,720,458.20 × 1,418,086.44 - Step 4: Simplify right side
3,813,638.76x = 8,112,104,204,006.81 - Step 5: Solve for x
x = 8,112,104,204,006.81/3,813,638.76 - Step 6: Final answer
x = 2,127,129.68
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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.