Finding the Fourth Proportional to 7,765,085.80, 11,647,628.70 and 4,930,733.80
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Solution
The fourth proportional to 7,765,085.80, 11,647,628.70 and 4,930,733.80 is: 7,396,100.70
Step by Step Solution
- Step 1: Write the proportion equation
7,765,085.80 : 11,647,628.70 = 4,930,733.80 : x - Step 2: Convert to fraction form
7,765,085.80/11,647,628.70 = 4,930,733.80/x - Step 3: Cross multiply
7,765,085.80x = 11,647,628.70 × 4,930,733.80 - Step 4: Simplify right side
7,765,085.80x = 57,431,356,520,940.05 - Step 5: Solve for x
x = 57,431,356,520,940.05/7,765,085.80 - Step 6: Final answer
x = 7,396,100.70
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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.