Finding the Fourth Proportional to 4,267,571.21, 5,895,879.45 and 3,578,174.18
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Solution
The fourth proportional to 4,267,571.21, 5,895,879.45 and 3,578,174.18 is: 4,943,440.33
Step by Step Solution
- Step 1: Write the proportion equation
4,267,571.21 : 5,895,879.45 = 3,578,174.18 : x - Step 2: Convert to fraction form
4,267,571.21/5,895,879.45 = 3,578,174.18/x - Step 3: Cross multiply
4,267,571.21x = 5,895,879.45 × 3,578,174.18 - Step 4: Simplify right side
4,267,571.21x = 21,096,483,616,382.60 - Step 5: Solve for x
x = 21,096,483,616,382.60/4,267,571.21 - Step 6: Final answer
x = 4,943,440.33
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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.