Finding the Fourth Proportional to 221,858,439.20, 332,149,929.60 and 135,764,997.20
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Solution
The fourth proportional to 221,858,439.20, 332,149,929.60 and 135,764,997.20 is: 203,257,241.08
Step by Step Solution
- Step 1: Write the proportion equation
221,858,439.20 : 332,149,929.60 = 135,764,997.20 : x - Step 2: Convert to fraction form
221,858,439.20/332,149,929.60 = 135,764,997.20/x - Step 3: Cross multiply
221,858,439.20x = 332,149,929.60 × 135,764,997.20 - Step 4: Simplify right side
221,858,439.20x = 45,094,334,262,124,200 - Step 5: Solve for x
x = 45,094,334,262,124,200/221,858,439.20 - Step 6: Final answer
x = 203,257,241.08
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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.