Finding the Fourth Proportional to 3,587,990.28, 4,952,626.42 and 2,138,140.36
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Solution
The fourth proportional to 3,587,990.28, 4,952,626.42 and 2,138,140.36 is: 2,951,348.70
Step by Step Solution
- Step 1: Write the proportion equation
3,587,990.28 : 4,952,626.42 = 2,138,140.36 : x - Step 2: Convert to fraction form
3,587,990.28/4,952,626.42 = 2,138,140.36/x - Step 3: Cross multiply
3,587,990.28x = 4,952,626.42 × 2,138,140.36 - Step 4: Simplify right side
3,587,990.28x = 10,589,410,436,604.31 - Step 5: Solve for x
x = 10,589,410,436,604.31/3,587,990.28 - Step 6: Final answer
x = 2,951,348.70
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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.