Finding the Fourth Proportional to 3,469,840.09, 4,787,809.95 and 2,179,767.09
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Solution
The fourth proportional to 3,469,840.09, 4,787,809.95 and 2,179,767.09 is: 3,007,720.90
Step by Step Solution
- Step 1: Write the proportion equation
3,469,840.09 : 4,787,809.95 = 2,179,767.09 : x - Step 2: Convert to fraction form
3,469,840.09/4,787,809.95 = 2,179,767.09/x - Step 3: Cross multiply
3,469,840.09x = 4,787,809.95 × 2,179,767.09 - Step 4: Simplify right side
3,469,840.09x = 10,436,310,562,184.54 - Step 5: Solve for x
x = 10,436,310,562,184.54/3,469,840.09 - Step 6: Final answer
x = 3,007,720.90
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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.