Finding the Fourth Proportional to 7,071,294.49, 9,758,450.78 and 4,280,481.90
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Solution
The fourth proportional to 7,071,294.49, 9,758,450.78 and 4,280,481.90 is: 5,907,103.99
Step by Step Solution
- Step 1: Write the proportion equation
7,071,294.49 : 9,758,450.78 = 4,280,481.90 : x - Step 2: Convert to fraction form
7,071,294.49/9,758,450.78 = 4,280,481.90/x - Step 3: Cross multiply
7,071,294.49x = 9,758,450.78 × 4,280,481.90 - Step 4: Simplify right side
7,071,294.49x = 41,770,871,890,995.78 - Step 5: Solve for x
x = 41,770,871,890,995.78/7,071,294.49 - Step 6: Final answer
x = 5,907,103.99
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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.