Finding the Fourth Proportional to 4,172,942.72, 5,758,684.80 and 2,454,135.68
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Solution
The fourth proportional to 4,172,942.72, 5,758,684.80 and 2,454,135.68 is: 3,386,721.26
Step by Step Solution
- Step 1: Write the proportion equation
4,172,942.72 : 5,758,684.80 = 2,454,135.68 : x - Step 2: Convert to fraction form
4,172,942.72/5,758,684.80 = 2,454,135.68/x - Step 3: Cross multiply
4,172,942.72x = 5,758,684.80 × 2,454,135.68 - Step 4: Simplify right side
4,172,942.72x = 14,132,593,837,553.66 - Step 5: Solve for x
x = 14,132,593,837,553.66/4,172,942.72 - Step 6: Final answer
x = 3,386,721.26
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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.