Finding the Fourth Proportional to 221,858,434.20, 332,149,922.10 and 135,764,992.20
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Solution
The fourth proportional to 221,858,434.20, 332,149,922.10 and 135,764,992.20 is: 203,257,233.59
Step by Step Solution
- Step 1: Write the proportion equation
221,858,434.20 : 332,149,922.10 = 135,764,992.20 : x - Step 2: Convert to fraction form
221,858,434.20/332,149,922.10 = 135,764,992.20/x - Step 3: Cross multiply
221,858,434.20x = 332,149,922.10 × 135,764,992.20 - Step 4: Simplify right side
221,858,434.20x = 45,094,331,583,137,104 - Step 5: Solve for x
x = 45,094,331,583,137,104/221,858,434.20 - Step 6: Final answer
x = 203,257,233.59
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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.