Finding the Fourth Proportional to 4,212,747.20, 5,813,578.48 and 2,279,007.36
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Solution
The fourth proportional to 4,212,747.20, 5,813,578.48 and 2,279,007.36 is: 3,145,023.31
Step by Step Solution
- Step 1: Write the proportion equation
4,212,747.20 : 5,813,578.48 = 2,279,007.36 : x - Step 2: Convert to fraction form
4,212,747.20/5,813,578.48 = 2,279,007.36/x - Step 3: Cross multiply
4,212,747.20x = 5,813,578.48 × 2,279,007.36 - Step 4: Simplify right side
4,212,747.20x = 13,249,188,143,857.61 - Step 5: Solve for x
x = 13,249,188,143,857.61/4,212,747.20 - Step 6: Final answer
x = 3,145,023.31
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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.