Finding the Fourth Proportional to 3,880,469.97, 5,355,214.25 and 2,161,591.65
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Solution
The fourth proportional to 3,880,469.97, 5,355,214.25 and 2,161,591.65 is: 2,983,088.77
Step by Step Solution
- Step 1: Write the proportion equation
3,880,469.97 : 5,355,214.25 = 2,161,591.65 : x - Step 2: Convert to fraction form
3,880,469.97/5,355,214.25 = 2,161,591.65/x - Step 3: Cross multiply
3,880,469.97x = 5,355,214.25 × 2,161,591.65 - Step 4: Simplify right side
3,880,469.97x = 11,575,786,395,953.05 - Step 5: Solve for x
x = 11,575,786,395,953.05/3,880,469.97 - Step 6: Final answer
x = 2,983,088.77
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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.