Finding the Fourth Proportional to 7,508,649.76, 10,361,874.16 and 4,246,105.12
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Solution
The fourth proportional to 7,508,649.76, 10,361,874.16 and 4,246,105.12 is: 5,859,589.72
Step by Step Solution
- Step 1: Write the proportion equation
7,508,649.76 : 10,361,874.16 = 4,246,105.12 : x - Step 2: Convert to fraction form
7,508,649.76/10,361,874.16 = 4,246,105.12/x - Step 3: Cross multiply
7,508,649.76x = 10,361,874.16 × 4,246,105.12 - Step 4: Simplify right side
7,508,649.76x = 43,997,606,923,571.70 - Step 5: Solve for x
x = 43,997,606,923,571.70/7,508,649.76 - Step 6: Final answer
x = 5,859,589.72
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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.