Finding the Fourth Proportional to 11,667,138.40, 16,100,651.28 and 6,440,147.64
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Solution
The fourth proportional to 11,667,138.40, 16,100,651.28 and 6,440,147.64 is: 8,887,403.90
Step by Step Solution
- Step 1: Write the proportion equation
11,667,138.40 : 16,100,651.28 = 6,440,147.64 : x - Step 2: Convert to fraction form
11,667,138.40/16,100,651.28 = 6,440,147.64/x - Step 3: Cross multiply
11,667,138.40x = 16,100,651.28 × 6,440,147.64 - Step 4: Simplify right side
11,667,138.40x = 103,690,571,343,354.97 - Step 5: Solve for x
x = 103,690,571,343,354.97/11,667,138.40 - Step 6: Final answer
x = 8,887,403.90
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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.