Finding the Fourth Proportional to 2,628,295,512.80, 3,942,443,269.20 and 2,198,313,816.80
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Solution
The fourth proportional to 2,628,295,512.80, 3,942,443,269.20 and 2,198,313,816.80 is: 3,297,470,725.20
Step by Step Solution
- Step 1: Write the proportion equation
2,628,295,512.80 : 3,942,443,269.20 = 2,198,313,816.80 : x - Step 2: Convert to fraction form
2,628,295,512.80/3,942,443,269.20 = 2,198,313,816.80/x - Step 3: Cross multiply
2,628,295,512.80x = 3,942,443,269.20 × 2,198,313,816.80 - Step 4: Simplify right side
2,628,295,512.80x = 8,666,727,510,632,521,728 - Step 5: Solve for x
x = 8,666,727,510,632,521,728/2,628,295,512.80 - Step 6: Final answer
x = 3,297,470,725.20
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1.5x scale
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.