Finding the Third Proportional to 198,941,330 and 428,115,756
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Solution
The third proportional to 198,941,330 and 428,115,756 is: 921,292,224.88
Step by Step Solution
- Step 1: Write the proportion equation
198,941,330 : 428,115,756 = 428,115,756 : x - Step 2: Convert to fraction form
198,941,330/428,115,756 = 428,115,756/x - Step 3: Cross multiply
198,941,330x = 428,115,756 × 428,115,756 - Step 4: Simplify right side
198,941,330x = 183,283,100,535,451,520 - Step 5: Solve for x
x = 183,283,100,535,451,520/198,941,330 - Step 6: Final answer
x = 921,292,224.88
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.