Finding the Fourth Proportional to 3,912,400.68, 5,392,874.49 and 3,084,123.63
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Solution
The fourth proportional to 3,912,400.68, 5,392,874.49 and 3,084,123.63 is: 4,251,172.88
Step by Step Solution
- Step 1: Write the proportion equation
3,912,400.68 : 5,392,874.49 = 3,084,123.63 : x - Step 2: Convert to fraction form
3,912,400.68/5,392,874.49 = 3,084,123.63/x - Step 3: Cross multiply
3,912,400.68x = 5,392,874.49 × 3,084,123.63 - Step 4: Simplify right side
3,912,400.68x = 16,632,291,648,233.20 - Step 5: Solve for x
x = 16,632,291,648,233.20/3,912,400.68 - Step 6: Final answer
x = 4,251,172.88
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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.