Finding the Fourth Proportional to 3,918,067.98, 5,874,418.92 and 1,995,257.18
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Solution
The fourth proportional to 3,918,067.98, 5,874,418.92 and 1,995,257.18 is: 2,991,519.44
Step by Step Solution
- Step 1: Write the proportion equation
3,918,067.98 : 5,874,418.92 = 1,995,257.18 : x - Step 2: Convert to fraction form
3,918,067.98/5,874,418.92 = 1,995,257.18/x - Step 3: Cross multiply
3,918,067.98x = 5,874,418.92 × 1,995,257.18 - Step 4: Simplify right side
3,918,067.98x = 11,720,976,528,457.85 - Step 5: Solve for x
x = 11,720,976,528,457.85/3,918,067.98 - Step 6: Final answer
x = 2,991,519.44
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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.