Finding the Fourth Proportional to 3,818,832.79, 5,269,982.83 and 2,187,768.19
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Solution
The fourth proportional to 3,818,832.79, 5,269,982.83 and 2,187,768.19 is: 3,019,116.42
Step by Step Solution
- Step 1: Write the proportion equation
3,818,832.79 : 5,269,982.83 = 2,187,768.19 : x - Step 2: Convert to fraction form
3,818,832.79/5,269,982.83 = 2,187,768.19/x - Step 3: Cross multiply
3,818,832.79x = 5,269,982.83 × 2,187,768.19 - Step 4: Simplify right side
3,818,832.79x = 11,529,500,797,320.18 - Step 5: Solve for x
x = 11,529,500,797,320.18/3,818,832.79 - Step 6: Final answer
x = 3,019,116.42
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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.