Finding the Fourth Proportional to 202,989,020.13, 280,127,535.21 and 110,170,640.61
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Solution
The fourth proportional to 202,989,020.13, 280,127,535.21 and 110,170,640.61 is: 152,036,942.62
Step by Step Solution
- Step 1: Write the proportion equation
202,989,020.13 : 280,127,535.21 = 110,170,640.61 : x - Step 2: Convert to fraction form
202,989,020.13/280,127,535.21 = 110,170,640.61/x - Step 3: Cross multiply
202,989,020.13x = 280,127,535.21 × 110,170,640.61 - Step 4: Simplify right side
202,989,020.13x = 30,861,830,006,586,028 - Step 5: Solve for x
x = 30,861,830,006,586,028/202,989,020.13 - Step 6: Final answer
x = 152,036,942.62
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1.5x scale
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.