Finding the Fourth Proportional to 45,517,231.80, 68,275,847.70 and 31,646,621.70
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Solution
The fourth proportional to 45,517,231.80, 68,275,847.70 and 31,646,621.70 is: 47,469,932.55
Step by Step Solution
- Step 1: Write the proportion equation
45,517,231.80 : 68,275,847.70 = 31,646,621.70 : x - Step 2: Convert to fraction form
45,517,231.80/68,275,847.70 = 31,646,621.70/x - Step 3: Cross multiply
45,517,231.80x = 68,275,847.70 × 31,646,621.70 - Step 4: Simplify right side
45,517,231.80x = 2,160,699,923,408,715.25 - Step 5: Solve for x
x = 2,160,699,923,408,715.25/45,517,231.80 - Step 6: Final answer
x = 47,469,932.55
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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.