Finding the Third Proportional to 84,243,900 and 129,431,472
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Solution
The third proportional to 84,243,900 and 129,431,472 is: 198,857,198.49
Step by Step Solution
- Step 1: Write the proportion equation
84,243,900 : 129,431,472 = 129,431,472 : x - Step 2: Convert to fraction form
84,243,900/129,431,472 = 129,431,472/x - Step 3: Cross multiply
84,243,900x = 129,431,472 × 129,431,472 - Step 4: Simplify right side
84,243,900x = 16,752,505,944,086,784 - Step 5: Solve for x
x = 16,752,505,944,086,784/84,243,900 - Step 6: Final answer
x = 198,857,198.49
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Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.