Finding the Fourth Proportional to 2,485,691,992.97, 3,729,029,166.32 and 911,813,912.31
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Solution
The fourth proportional to 2,485,691,992.97, 3,729,029,166.32 and 911,813,912.31 is: 1,367,901,044.41
Step by Step Solution
- Step 1: Write the proportion equation
2,485,691,992.97 : 3,729,029,166.32 = 911,813,912.31 : x - Step 2: Convert to fraction form
2,485,691,992.97/3,729,029,166.32 = 911,813,912.31/x - Step 3: Cross multiply
2,485,691,992.97x = 3,729,029,166.32 × 911,813,912.31 - Step 4: Simplify right side
2,485,691,992.97x = 3,400,180,673,269,762,048 - Step 5: Solve for x
x = 3,400,180,673,269,762,048/2,485,691,992.97 - Step 6: Final answer
x = 1,367,901,044.41
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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.