Finding the Third Proportional to 198,941,217.75 and 428,115,516.75
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Solution
The third proportional to 198,941,217.75 and 428,115,516.75 is: 921,291,714.99
Step by Step Solution
- Step 1: Write the proportion equation
198,941,217.75 : 428,115,516.75 = 428,115,516.75 : x - Step 2: Convert to fraction form
198,941,217.75/428,115,516.75 = 428,115,516.75/x - Step 3: Cross multiply
198,941,217.75x = 428,115,516.75 × 428,115,516.75 - Step 4: Simplify right side
198,941,217.75x = 183,282,895,682,119,520 - Step 5: Solve for x
x = 183,282,895,682,119,520/198,941,217.75 - Step 6: Final answer
x = 921,291,714.99
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Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.