Finding the Fourth Proportional to 2,543,241,721.36, 3,815,044,185.39 and 677,877,645.85
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Solution
The fourth proportional to 2,543,241,721.36, 3,815,044,185.39 and 677,877,645.85 is: 1,016,864,873.47
Step by Step Solution
- Step 1: Write the proportion equation
2,543,241,721.36 : 3,815,044,185.39 = 677,877,645.85 : x - Step 2: Convert to fraction form
2,543,241,721.36/3,815,044,185.39 = 677,877,645.85/x - Step 3: Cross multiply
2,543,241,721.36x = 3,815,044,185.39 × 677,877,645.85 - Step 4: Simplify right side
2,543,241,721.36x = 2,586,133,171,205,904,384 - Step 5: Solve for x
x = 2,586,133,171,205,904,384/2,543,241,721.36 - Step 6: Final answer
x = 1,016,864,873.47
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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.