Finding the Fourth Proportional to 354,883,249.46, 489,765,393.99 and 204,222,087.92
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Solution
The fourth proportional to 354,883,249.46, 489,765,393.99 and 204,222,087.92 is: 281,841,736.70
Step by Step Solution
- Step 1: Write the proportion equation
354,883,249.46 : 489,765,393.99 = 204,222,087.92 : x - Step 2: Convert to fraction form
354,883,249.46/489,765,393.99 = 204,222,087.92/x - Step 3: Cross multiply
354,883,249.46x = 489,765,393.99 × 204,222,087.92 - Step 4: Simplify right side
354,883,249.46x = 100,020,911,352,823,648 - Step 5: Solve for x
x = 100,020,911,352,823,648/354,883,249.46 - Step 6: Final answer
x = 281,841,736.70
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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.