Finding the Fourth Proportional to 3,949,344.87, 5,450,095.98 and 2,138,508.87
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Solution
The fourth proportional to 3,949,344.87, 5,450,095.98 and 2,138,508.87 is: 2,951,142.27
Step by Step Solution
- Step 1: Write the proportion equation
3,949,344.87 : 5,450,095.98 = 2,138,508.87 : x - Step 2: Convert to fraction form
3,949,344.87/5,450,095.98 = 2,138,508.87/x - Step 3: Cross multiply
3,949,344.87x = 5,450,095.98 × 2,138,508.87 - Step 4: Simplify right side
3,949,344.87x = 11,655,078,595,581.34 - Step 5: Solve for x
x = 11,655,078,595,581.34/3,949,344.87 - Step 6: Final answer
x = 2,951,142.27
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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.