Finding the Fourth Proportional to 3,834,122.26, 5,291,059.17 and 2,115,315.22
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Solution
The fourth proportional to 3,834,122.26, 5,291,059.17 and 2,115,315.22 is: 2,919,118.70
Step by Step Solution
- Step 1: Write the proportion equation
3,834,122.26 : 5,291,059.17 = 2,115,315.22 : x - Step 2: Convert to fraction form
3,834,122.26/5,291,059.17 = 2,115,315.22/x - Step 3: Cross multiply
3,834,122.26x = 5,291,059.17 × 2,115,315.22 - Step 4: Simplify right side
3,834,122.26x = 11,192,257,992,221.57 - Step 5: Solve for x
x = 11,192,257,992,221.57/3,834,122.26 - Step 6: Final answer
x = 2,919,118.70
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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.