Finding the Fourth Proportional to 3,879,171.36, 5,352,873.31 and 2,160,451.80
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Solution
The fourth proportional to 3,879,171.36, 5,352,873.31 and 2,160,451.80 is: 2,981,210.08
Step by Step Solution
- Step 1: Write the proportion equation
3,879,171.36 : 5,352,873.31 = 2,160,451.80 : x - Step 2: Convert to fraction form
3,879,171.36/5,352,873.31 = 2,160,451.80/x - Step 3: Cross multiply
3,879,171.36x = 5,352,873.31 × 2,160,451.80 - Step 4: Simplify right side
3,879,171.36x = 11,564,624,777,761.46 - Step 5: Solve for x
x = 11,564,624,777,761.46/3,879,171.36 - Step 6: Final answer
x = 2,981,210.08
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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.