Finding the Fourth Proportional to 136,206,816.10, 204,310,224.15 and 90,620,793.70
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Solution
The fourth proportional to 136,206,816.10, 204,310,224.15 and 90,620,793.70 is: 135,931,190.55
Step by Step Solution
- Step 1: Write the proportion equation
136,206,816.10 : 204,310,224.15 = 90,620,793.70 : x - Step 2: Convert to fraction form
136,206,816.10/204,310,224.15 = 90,620,793.70/x - Step 3: Cross multiply
136,206,816.10x = 204,310,224.15 × 90,620,793.70 - Step 4: Simplify right side
136,206,816.10x = 18,514,754,673,497,908 - Step 5: Solve for x
x = 18,514,754,673,497,908/136,206,816.10 - Step 6: Final answer
x = 135,931,190.55
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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.