Finding the Fourth Proportional to 8,313,420.12, 11,469,255.60 and 4,828,165.68
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Solution
The fourth proportional to 8,313,420.12, 11,469,255.60 and 4,828,165.68 is: 6,660,972.92
Step by Step Solution
- Step 1: Write the proportion equation
8,313,420.12 : 11,469,255.60 = 4,828,165.68 : x - Step 2: Convert to fraction form
8,313,420.12/11,469,255.60 = 4,828,165.68/x - Step 3: Cross multiply
8,313,420.12x = 11,469,255.60 × 4,828,165.68 - Step 4: Simplify right side
8,313,420.12x = 55,375,466,263,067.80 - Step 5: Solve for x
x = 55,375,466,263,067.80/8,313,420.12 - Step 6: Final answer
x = 6,660,972.92
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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.