Finding the Fourth Proportional to 3,922,318.97, 5,412,938.93 and 2,180,023.10
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Solution
The fourth proportional to 3,922,318.97, 5,412,938.93 and 2,180,023.10 is: 3,008,508.99
Step by Step Solution
- Step 1: Write the proportion equation
3,922,318.97 : 5,412,938.93 = 2,180,023.10 : x - Step 2: Convert to fraction form
3,922,318.97/5,412,938.93 = 2,180,023.10/x - Step 3: Cross multiply
3,922,318.97x = 5,412,938.93 × 2,180,023.10 - Step 4: Simplify right side
3,922,318.97x = 11,800,331,868,324.47 - Step 5: Solve for x
x = 11,800,331,868,324.47/3,922,318.97 - Step 6: Final answer
x = 3,008,508.99
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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.