Finding the Fourth Proportional to 5,121,167.81, 7,067,219.18 and 2,916,032.42
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Solution
The fourth proportional to 5,121,167.81, 7,067,219.18 and 2,916,032.42 is: 4,024,129.07
Step by Step Solution
- Step 1: Write the proportion equation
5,121,167.81 : 7,067,219.18 = 2,916,032.42 : x - Step 2: Convert to fraction form
5,121,167.81/7,067,219.18 = 2,916,032.42/x - Step 3: Cross multiply
5,121,167.81x = 7,067,219.18 × 2,916,032.42 - Step 4: Simplify right side
5,121,167.81x = 20,608,240,251,213.70 - Step 5: Solve for x
x = 20,608,240,251,213.70/5,121,167.81 - Step 6: Final answer
x = 4,024,129.07
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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.