Finding the Fourth Proportional to 5,467,974.20, 8,201,961.30 and 2,279,328.20
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Solution
The fourth proportional to 5,467,974.20, 8,201,961.30 and 2,279,328.20 is: 3,418,992.30
Step by Step Solution
- Step 1: Write the proportion equation
5,467,974.20 : 8,201,961.30 = 2,279,328.20 : x - Step 2: Convert to fraction form
5,467,974.20/8,201,961.30 = 2,279,328.20/x - Step 3: Cross multiply
5,467,974.20x = 8,201,961.30 × 2,279,328.20 - Step 4: Simplify right side
5,467,974.20x = 18,694,961,686,398.66 - Step 5: Solve for x
x = 18,694,961,686,398.66/5,467,974.20 - Step 6: Final answer
x = 3,418,992.30
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1.5x scale
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.