Finding the Fourth Proportional to 5,647,821.12, 7,795,126.80 and 3,355,540.56
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Solution
The fourth proportional to 5,647,821.12, 7,795,126.80 and 3,355,540.56 is: 4,631,319.51
Step by Step Solution
- Step 1: Write the proportion equation
5,647,821.12 : 7,795,126.80 = 3,355,540.56 : x - Step 2: Convert to fraction form
5,647,821.12/7,795,126.80 = 3,355,540.56/x - Step 3: Cross multiply
5,647,821.12x = 7,795,126.80 × 3,355,540.56 - Step 4: Simplify right side
5,647,821.12x = 26,156,864,147,743.01 - Step 5: Solve for x
x = 26,156,864,147,743.01/5,647,821.12 - Step 6: Final answer
x = 4,631,319.51
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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.