Finding the Fourth Proportional to 489,324,857.80, 733,987,286.70 and 166,208,729.80
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Solution
The fourth proportional to 489,324,857.80, 733,987,286.70 and 166,208,729.80 is: 249,313,094.70
Step by Step Solution
- Step 1: Write the proportion equation
489,324,857.80 : 733,987,286.70 = 166,208,729.80 : x - Step 2: Convert to fraction form
489,324,857.80/733,987,286.70 = 166,208,729.80/x - Step 3: Cross multiply
489,324,857.80x = 733,987,286.70 × 166,208,729.80 - Step 4: Simplify right side
489,324,857.80x = 121,995,094,611,755,456 - Step 5: Solve for x
x = 121,995,094,611,755,456/489,324,857.80 - Step 6: Final answer
x = 249,313,094.70
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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.