Finding the Fourth Proportional to 3,718,287.68, 5,135,913.96 and 3,067,272.80
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Solution
The fourth proportional to 3,718,287.68, 5,135,913.96 and 3,067,272.80 is: 4,236,694.56
Step by Step Solution
- Step 1: Write the proportion equation
3,718,287.68 : 5,135,913.96 = 3,067,272.80 : x - Step 2: Convert to fraction form
3,718,287.68/5,135,913.96 = 3,067,272.80/x - Step 3: Cross multiply
3,718,287.68x = 5,135,913.96 × 3,067,272.80 - Step 4: Simplify right side
3,718,287.68x = 15,753,249,192,648.29 - Step 5: Solve for x
x = 15,753,249,192,648.29/3,718,287.68 - Step 6: Final answer
x = 4,236,694.56
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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.