Finding the Fourth Proportional to 3,879,551.12, 5,353,945.96 and 2,160,671.62
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Solution
The fourth proportional to 3,879,551.12, 5,353,945.96 and 2,160,671.62 is: 2,981,818.96
Step by Step Solution
- Step 1: Write the proportion equation
3,879,551.12 : 5,353,945.96 = 2,160,671.62 : x - Step 2: Convert to fraction form
3,879,551.12/5,353,945.96 = 2,160,671.62/x - Step 3: Cross multiply
3,879,551.12x = 5,353,945.96 × 2,160,671.62 - Step 4: Simplify right side
3,879,551.12x = 11,568,119,090,785.66 - Step 5: Solve for x
x = 11,568,119,090,785.66/3,879,551.12 - Step 6: Final answer
x = 2,981,818.96
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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.