Finding the Fourth Proportional to 3,887,797.15, 5,365,162.20 and 2,168,917.75
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Solution
The fourth proportional to 3,887,797.15, 5,365,162.20 and 2,168,917.75 is: 2,993,107.68
Step by Step Solution
- Step 1: Write the proportion equation
3,887,797.15 : 5,365,162.20 = 2,168,917.75 : x - Step 2: Convert to fraction form
3,887,797.15/5,365,162.20 = 2,168,917.75/x - Step 3: Cross multiply
3,887,797.15x = 5,365,162.20 × 2,168,917.75 - Step 4: Simplify right side
3,887,797.15x = 11,636,595,527,209.05 - Step 5: Solve for x
x = 11,636,595,527,209.05/3,887,797.15 - Step 6: Final answer
x = 2,993,107.68
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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.