Finding the Fourth Proportional to 327,407,187.80, 491,110,781.70 and 163,670,215.70
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Solution
The fourth proportional to 327,407,187.80, 491,110,781.70 and 163,670,215.70 is: 245,505,323.55
Step by Step Solution
- Step 1: Write the proportion equation
327,407,187.80 : 491,110,781.70 = 163,670,215.70 : x - Step 2: Convert to fraction form
327,407,187.80/491,110,781.70 = 163,670,215.70/x - Step 3: Cross multiply
327,407,187.80x = 491,110,781.70 × 163,670,215.70 - Step 4: Simplify right side
327,407,187.80x = 80,380,207,573,434,608 - Step 5: Solve for x
x = 80,380,207,573,434,608/327,407,187.80 - Step 6: Final answer
x = 245,505,323.55
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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.