Finding the Fourth Proportional to 7,278,353, 10,040,880.66 and 4,220,796.68
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Solution
The fourth proportional to 7,278,353, 10,040,880.66 and 4,220,796.68 is: 5,822,816.75
Step by Step Solution
- Step 1: Write the proportion equation
7,278,353 : 10,040,880.66 = 4,220,796.68 : x - Step 2: Convert to fraction form
7,278,353/10,040,880.66 = 4,220,796.68/x - Step 3: Cross multiply
7,278,353x = 10,040,880.66 × 4,220,796.68 - Step 4: Simplify right side
7,278,353x = 42,380,515,754,004.20 - Step 5: Solve for x
x = 42,380,515,754,004.20/7,278,353 - Step 6: Final answer
x = 5,822,816.75
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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.