Finding the Fourth Proportional to 5,987,786.40, 8,263,154.16 and 3,409,469.28
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Solution
The fourth proportional to 5,987,786.40, 8,263,154.16 and 3,409,469.28 is: 4,705,072.69
Step by Step Solution
- Step 1: Write the proportion equation
5,987,786.40 : 8,263,154.16 = 3,409,469.28 : x - Step 2: Convert to fraction form
5,987,786.40/8,263,154.16 = 3,409,469.28/x - Step 3: Cross multiply
5,987,786.40x = 8,263,154.16 × 3,409,469.28 - Step 4: Simplify right side
5,987,786.40x = 28,172,970,264,424.20 - Step 5: Solve for x
x = 28,172,970,264,424.20/5,987,786.40 - Step 6: Final answer
x = 4,705,072.69
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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.