Finding the Fourth Proportional to 327,494,221.20, 491,241,331.80 and 133,305,679.80
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Solution
The fourth proportional to 327,494,221.20, 491,241,331.80 and 133,305,679.80 is: 199,958,519.70
Step by Step Solution
- Step 1: Write the proportion equation
327,494,221.20 : 491,241,331.80 = 133,305,679.80 : x - Step 2: Convert to fraction form
327,494,221.20/491,241,331.80 = 133,305,679.80/x - Step 3: Cross multiply
327,494,221.20x = 491,241,331.80 × 133,305,679.80 - Step 4: Simplify right side
327,494,221.20x = 65,485,259,681,456,360 - Step 5: Solve for x
x = 65,485,259,681,456,360/327,494,221.20 - Step 6: Final answer
x = 199,958,519.70
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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.