Finding the Fourth Proportional to 3,746,872.36, 5,170,721.70 and 2,028,029.68
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Solution
The fourth proportional to 3,746,872.36, 5,170,721.70 and 2,028,029.68 is: 2,798,701.44
Step by Step Solution
- Step 1: Write the proportion equation
3,746,872.36 : 5,170,721.70 = 2,028,029.68 : x - Step 2: Convert to fraction form
3,746,872.36/5,170,721.70 = 2,028,029.68/x - Step 3: Cross multiply
3,746,872.36x = 5,170,721.70 × 2,028,029.68 - Step 4: Simplify right side
3,746,872.36x = 10,486,377,074,620.06 - Step 5: Solve for x
x = 10,486,377,074,620.06/3,746,872.36 - Step 6: Final answer
x = 2,798,701.44
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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.