Finding the Fourth Proportional to 221,858,429.70, 332,149,915.35 and 135,764,987.70
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Solution
The fourth proportional to 221,858,429.70, 332,149,915.35 and 135,764,987.70 is: 203,257,226.84
Step by Step Solution
- Step 1: Write the proportion equation
221,858,429.70 : 332,149,915.35 = 135,764,987.70 : x - Step 2: Convert to fraction form
221,858,429.70/332,149,915.35 = 135,764,987.70/x - Step 3: Cross multiply
221,858,429.70x = 332,149,915.35 × 135,764,987.70 - Step 4: Simplify right side
221,858,429.70x = 45,094,329,172,048,792 - Step 5: Solve for x
x = 45,094,329,172,048,792/221,858,429.70 - Step 6: Final answer
x = 203,257,226.84
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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.