Finding the Fourth Proportional to 3,386,847.36, 5,081,156.40 and 1,965,537.12
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Solution
The fourth proportional to 3,386,847.36, 5,081,156.40 and 1,965,537.12 is: 2,948,819.49
Step by Step Solution
- Step 1: Write the proportion equation
3,386,847.36 : 5,081,156.40 = 1,965,537.12 : x - Step 2: Convert to fraction form
3,386,847.36/5,081,156.40 = 1,965,537.12/x - Step 3: Cross multiply
3,386,847.36x = 5,081,156.40 × 1,965,537.12 - Step 4: Simplify right side
3,386,847.36x = 9,987,201,516,725.57 - Step 5: Solve for x
x = 9,987,201,516,725.57/3,386,847.36 - Step 6: Final answer
x = 2,948,819.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.