Finding the Fourth Proportional to 834,187,711.20, 1,251,505,515.60 and 743,936,344.80
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Solution
The fourth proportional to 834,187,711.20, 1,251,505,515.60 and 743,936,344.80 is: 1,116,104,236.82
Step by Step Solution
- Step 1: Write the proportion equation
834,187,711.20 : 1,251,505,515.60 = 743,936,344.80 : x - Step 2: Convert to fraction form
834,187,711.20/1,251,505,515.60 = 743,936,344.80/x - Step 3: Cross multiply
834,187,711.20x = 1,251,505,515.60 × 743,936,344.80 - Step 4: Simplify right side
834,187,711.20x = 931,040,438,772,503,296 - Step 5: Solve for x
x = 931,040,438,772,503,296/834,187,711.20 - Step 6: Final answer
x = 1,116,104,236.82
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1.5x scale
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.