Finding the Fourth Proportional to 144,846,247.20, 217,269,370.80 and 68,318,743.20
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Solution
The fourth proportional to 144,846,247.20, 217,269,370.80 and 68,318,743.20 is: 102,478,114.80
Step by Step Solution
- Step 1: Write the proportion equation
144,846,247.20 : 217,269,370.80 = 68,318,743.20 : x - Step 2: Convert to fraction form
144,846,247.20/217,269,370.80 = 68,318,743.20/x - Step 3: Cross multiply
144,846,247.20x = 217,269,370.80 × 68,318,743.20 - Step 4: Simplify right side
144,846,247.20x = 14,843,570,348,910,780 - Step 5: Solve for x
x = 14,843,570,348,910,780/144,846,247.20 - Step 6: Final answer
x = 102,478,114.80
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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.