Finding the Fourth Proportional to 394,815,786,742.14, 544,845,785,704.10 and 225,843,057,910.12
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Solution
The fourth proportional to 394,815,786,742.14, 544,845,785,704.10 and 225,843,057,910.12 is: 311,663,419,915.94
Step by Step Solution
- Step 1: Write the proportion equation
394,815,786,742.14 : 544,845,785,704.10 = 225,843,057,910.12 : x - Step 2: Convert to fraction form
394,815,786,742.14/544,845,785,704.10 = 225,843,057,910.12/x - Step 3: Cross multiply
394,815,786,742.14x = 544,845,785,704.10 × 225,843,057,910.12 - Step 4: Simplify right side
394,815,786,742.14x = 123,049,638,332,855,876,583,424 - Step 5: Solve for x
x = 123,049,638,332,855,876,583,424/394,815,786,742.14 - Step 6: Final answer
x = 311,663,419,915.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.