Finding the Fourth Proportional to 5,121,363.28, 7,067,398.44 and 2,798,206
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Solution
The fourth proportional to 5,121,363.28, 7,067,398.44 and 2,798,206 is: 3,861,478.99
Step by Step Solution
- Step 1: Write the proportion equation
5,121,363.28 : 7,067,398.44 = 2,798,206 : x - Step 2: Convert to fraction form
5,121,363.28/7,067,398.44 = 2,798,206/x - Step 3: Cross multiply
5,121,363.28x = 7,067,398.44 × 2,798,206 - Step 4: Simplify right side
5,121,363.28x = 19,776,036,719,198.64 - Step 5: Solve for x
x = 19,776,036,719,198.64/5,121,363.28 - Step 6: Final answer
x = 3,861,478.99
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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.