Finding the Fourth Proportional to 3,899,428,993.92, 5,381,211,611.84 and 2,205,847,456.64
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Solution
The fourth proportional to 3,899,428,993.92, 5,381,211,611.84 and 2,205,847,456.64 is: 3,044,069,264.02
Step by Step Solution
- Step 1: Write the proportion equation
3,899,428,993.92 : 5,381,211,611.84 = 2,205,847,456.64 : x - Step 2: Convert to fraction form
3,899,428,993.92/5,381,211,611.84 = 2,205,847,456.64/x - Step 3: Cross multiply
3,899,428,993.92x = 5,381,211,611.84 × 2,205,847,456.64 - Step 4: Simplify right side
3,899,428,993.92x = 11,870,131,947,618,897,920 - Step 5: Solve for x
x = 11,870,131,947,618,897,920/3,899,428,993.92 - Step 6: Final answer
x = 3,044,069,264.02
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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.