Finding the Fourth Proportional to 2,212,997.40, 3,319,496.10 and 2,179,819.80
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Solution
The fourth proportional to 2,212,997.40, 3,319,496.10 and 2,179,819.80 is: 3,269,729.70
Step by Step Solution
- Step 1: Write the proportion equation
2,212,997.40 : 3,319,496.10 = 2,179,819.80 : x - Step 2: Convert to fraction form
2,212,997.40/3,319,496.10 = 2,179,819.80/x - Step 3: Cross multiply
2,212,997.40x = 3,319,496.10 × 2,179,819.80 - Step 4: Simplify right side
2,212,997.40x = 7,235,903,324,802.78 - Step 5: Solve for x
x = 7,235,903,324,802.78/2,212,997.40 - Step 6: Final answer
x = 3,269,729.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.