Finding the Fourth Proportional to 664,302,609.40, 996,453,914.10 and 446,624,375.80
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Solution
The fourth proportional to 664,302,609.40, 996,453,914.10 and 446,624,375.80 is: 669,936,563.70
Step by Step Solution
- Step 1: Write the proportion equation
664,302,609.40 : 996,453,914.10 = 446,624,375.80 : x - Step 2: Convert to fraction form
664,302,609.40/996,453,914.10 = 446,624,375.80/x - Step 3: Cross multiply
664,302,609.40x = 996,453,914.10 × 446,624,375.80 - Step 4: Simplify right side
664,302,609.40x = 445,040,607,398,379,328 - Step 5: Solve for x
x = 445,040,607,398,379,328/664,302,609.40 - Step 6: Final answer
x = 669,936,563.70
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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.