Finding the Fourth Proportional to 3,787,272.65, 5,226,469.65 and 2,155,785.05
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Solution
The fourth proportional to 3,787,272.65, 5,226,469.65 and 2,155,785.05 is: 2,975,002.37
Step by Step Solution
- Step 1: Write the proportion equation
3,787,272.65 : 5,226,469.65 = 2,155,785.05 : x - Step 2: Convert to fraction form
3,787,272.65/5,226,469.65 = 2,155,785.05/x - Step 3: Cross multiply
3,787,272.65x = 5,226,469.65 × 2,155,785.05 - Step 4: Simplify right side
3,787,272.65x = 11,267,145,109,616.38 - Step 5: Solve for x
x = 11,267,145,109,616.38/3,787,272.65 - Step 6: Final answer
x = 2,975,002.37
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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.