Finding the Fourth Proportional to 13,481,769.75, 18,604,907.87 and 7,370,198.25
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Solution
The fourth proportional to 13,481,769.75, 18,604,907.87 and 7,370,198.25 is: 10,170,909.45
Step by Step Solution
- Step 1: Write the proportion equation
13,481,769.75 : 18,604,907.87 = 7,370,198.25 : x - Step 2: Convert to fraction form
13,481,769.75/18,604,907.87 = 7,370,198.25/x - Step 3: Cross multiply
13,481,769.75x = 18,604,907.87 × 7,370,198.25 - Step 4: Simplify right side
13,481,769.75x = 137,121,859,388,034.22 - Step 5: Solve for x
x = 137,121,859,388,034.22/13,481,769.75 - Step 6: Final answer
x = 10,170,909.45
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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.