Finding the Fourth Proportional to 5,161,007.99, 7,122,308.11 and 2,838,029.56
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Solution
The fourth proportional to 5,161,007.99, 7,122,308.11 and 2,838,029.56 is: 3,916,545.17
Step by Step Solution
- Step 1: Write the proportion equation
5,161,007.99 : 7,122,308.11 = 2,838,029.56 : x - Step 2: Convert to fraction form
5,161,007.99/7,122,308.11 = 2,838,029.56/x - Step 3: Cross multiply
5,161,007.99x = 7,122,308.11 × 2,838,029.56 - Step 4: Simplify right side
5,161,007.99x = 20,213,320,932,028.20 - Step 5: Solve for x
x = 20,213,320,932,028.20/5,161,007.99 - Step 6: Final answer
x = 3,916,545.17
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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.