Finding the Fourth Proportional to 12,474,250.75, 18,718,841.10 and 5,382,538.75
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Solution
The fourth proportional to 12,474,250.75, 18,718,841.10 and 5,382,538.75 is: 8,077,029.20
Step by Step Solution
- Step 1: Write the proportion equation
12,474,250.75 : 18,718,841.10 = 5,382,538.75 : x - Step 2: Convert to fraction form
12,474,250.75/18,718,841.10 = 5,382,538.75/x - Step 3: Cross multiply
12,474,250.75x = 18,718,841.10 × 5,382,538.75 - Step 4: Simplify right side
12,474,250.75x = 100,754,887,575,842.64 - Step 5: Solve for x
x = 100,754,887,575,842.64/12,474,250.75 - Step 6: Final answer
x = 8,077,029.20
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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.