Finding the Fourth Proportional to 18,568,052.70, 27,852,079.05 and 7,781,768.70
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Solution
The fourth proportional to 18,568,052.70, 27,852,079.05 and 7,781,768.70 is: 11,672,653.05
Step by Step Solution
- Step 1: Write the proportion equation
18,568,052.70 : 27,852,079.05 = 7,781,768.70 : x - Step 2: Convert to fraction form
18,568,052.70/27,852,079.05 = 7,781,768.70/x - Step 3: Cross multiply
18,568,052.70x = 27,852,079.05 × 7,781,768.70 - Step 4: Simplify right side
18,568,052.70x = 216,738,436,981,215.75 - Step 5: Solve for x
x = 216,738,436,981,215.75/18,568,052.70 - Step 6: Final answer
x = 11,672,653.05
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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.