Finding the Fourth Proportional to 2,197,900.40, 3,297,628.20 and 2,120,140.40
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Solution
The fourth proportional to 2,197,900.40, 3,297,628.20 and 2,120,140.40 is: 3,180,960.69
Step by Step Solution
- Step 1: Write the proportion equation
2,197,900.40 : 3,297,628.20 = 2,120,140.40 : x - Step 2: Convert to fraction form
2,197,900.40/3,297,628.20 = 2,120,140.40/x - Step 3: Cross multiply
2,197,900.40x = 3,297,628.20 × 2,120,140.40 - Step 4: Simplify right side
2,197,900.40x = 6,991,434,770,999.28 - Step 5: Solve for x
x = 6,991,434,770,999.28/2,197,900.40 - Step 6: Final answer
x = 3,180,960.69
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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.