Finding the Fourth Proportional to 74,489,107.20, 111,733,660.80 and 74,489,107.20
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Solution
The fourth proportional to 74,489,107.20, 111,733,660.80 and 74,489,107.20 is: 111,733,660.80
Step by Step Solution
- Step 1: Write the proportion equation
74,489,107.20 : 111,733,660.80 = 74,489,107.20 : x - Step 2: Convert to fraction form
74,489,107.20/111,733,660.80 = 74,489,107.20/x - Step 3: Cross multiply
74,489,107.20x = 111,733,660.80 × 74,489,107.20 - Step 4: Simplify right side
74,489,107.20x = 8,322,940,637,179,638 - Step 5: Solve for x
x = 8,322,940,637,179,638/74,489,107.20 - Step 6: Final answer
x = 111,733,660.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.