Finding the Fourth Proportional to 3,880,538.88, 5,355,309.24 and 2,161,660.56
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Solution
The fourth proportional to 3,880,538.88, 5,355,309.24 and 2,161,660.56 is: 2,983,183.81
Step by Step Solution
- Step 1: Write the proportion equation
3,880,538.88 : 5,355,309.24 = 2,161,660.56 : x - Step 2: Convert to fraction form
3,880,538.88/5,355,309.24 = 2,161,660.56/x - Step 3: Cross multiply
3,880,538.88x = 5,355,309.24 × 2,161,660.56 - Step 4: Simplify right side
3,880,538.88x = 11,576,360,770,711.57 - Step 5: Solve for x
x = 11,576,360,770,711.57/3,880,538.88 - Step 6: Final answer
x = 2,983,183.81
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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.