Finding the Fourth Proportional to 12,163,065.24, 18,213,717.42 and 7,302,348.39
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Solution
The fourth proportional to 12,163,065.24, 18,213,717.42 and 7,302,348.39 is: 10,934,982.87
Step by Step Solution
- Step 1: Write the proportion equation
12,163,065.24 : 18,213,717.42 = 7,302,348.39 : x - Step 2: Convert to fraction form
12,163,065.24/18,213,717.42 = 7,302,348.39/x - Step 3: Cross multiply
12,163,065.24x = 18,213,717.42 × 7,302,348.39 - Step 4: Simplify right side
12,163,065.24x = 133,002,910,077,851.95 - Step 5: Solve for x
x = 133,002,910,077,851.95/12,163,065.24 - Step 6: Final answer
x = 10,934,982.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.