Finding the Fourth Proportional to 11,277,956.62, 15,563,163.18 and 6,121,207.72
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Solution
The fourth proportional to 11,277,956.62, 15,563,163.18 and 6,121,207.72 is: 8,447,040.35
Step by Step Solution
- Step 1: Write the proportion equation
11,277,956.62 : 15,563,163.18 = 6,121,207.72 : x - Step 2: Convert to fraction form
11,277,956.62/15,563,163.18 = 6,121,207.72/x - Step 3: Cross multiply
11,277,956.62x = 15,563,163.18 × 6,121,207.72 - Step 4: Simplify right side
11,277,956.62x = 95,265,354,605,035.75 - Step 5: Solve for x
x = 95,265,354,605,035.75/11,277,956.62 - Step 6: Final answer
x = 8,447,040.35
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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.