Finding the Fourth Proportional to 198,247,134.13, 273,234,743.87 and 145,211,165.80
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Solution
The fourth proportional to 198,247,134.13, 273,234,743.87 and 145,211,165.80 is: 200,137,751.64
Step by Step Solution
- Step 1: Write the proportion equation
198,247,134.13 : 273,234,743.87 = 145,211,165.80 : x - Step 2: Convert to fraction form
198,247,134.13/273,234,743.87 = 145,211,165.80/x - Step 3: Cross multiply
198,247,134.13x = 273,234,743.87 × 145,211,165.80 - Step 4: Simplify right side
198,247,134.13x = 39,676,735,693,017,968 - Step 5: Solve for x
x = 39,676,735,693,017,968/198,247,134.13 - Step 6: Final answer
x = 200,137,751.64
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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.