Finding the Fourth Proportional to 8,078,485.26, 12,117,694.68 and 3,286,134.03
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Solution
The fourth proportional to 8,078,485.26, 12,117,694.68 and 3,286,134.03 is: 4,929,187.54
Step by Step Solution
- Step 1: Write the proportion equation
8,078,485.26 : 12,117,694.68 = 3,286,134.03 : x - Step 2: Convert to fraction form
8,078,485.26/12,117,694.68 = 3,286,134.03/x - Step 3: Cross multiply
8,078,485.26x = 12,117,694.68 × 3,286,134.03 - Step 4: Simplify right side
8,078,485.26x = 39,820,368,853,097.95 - Step 5: Solve for x
x = 39,820,368,853,097.95/8,078,485.26 - Step 6: Final answer
x = 4,929,187.54
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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.