Finding the Fourth Proportional to 324,469,847.72, 447,768,387.70 and 177,788,982.44
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Solution
The fourth proportional to 324,469,847.72, 447,768,387.70 and 177,788,982.44 is: 245,348,794.59
Step by Step Solution
- Step 1: Write the proportion equation
324,469,847.72 : 447,768,387.70 = 177,788,982.44 : x - Step 2: Convert to fraction form
324,469,847.72/447,768,387.70 = 177,788,982.44/x - Step 3: Cross multiply
324,469,847.72x = 447,768,387.70 × 177,788,982.44 - Step 4: Simplify right side
324,469,847.72x = 79,608,286,017,982,416 - Step 5: Solve for x
x = 79,608,286,017,982,416/324,469,847.72 - Step 6: Final answer
x = 245,348,794.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.