Finding the Fourth Proportional to 198,689,906.88, 274,201,089.84 and 110,589,537.60
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Solution
The fourth proportional to 198,689,906.88, 274,201,089.84 and 110,589,537.60 is: 152,618,581.44
Step by Step Solution
- Step 1: Write the proportion equation
198,689,906.88 : 274,201,089.84 = 110,589,537.60 : x - Step 2: Convert to fraction form
198,689,906.88/274,201,089.84 = 110,589,537.60/x - Step 3: Cross multiply
198,689,906.88x = 274,201,089.84 × 110,589,537.60 - Step 4: Simplify right side
198,689,906.88x = 30,323,771,734,821,652 - Step 5: Solve for x
x = 30,323,771,734,821,652/198,689,906.88 - Step 6: Final answer
x = 152,618,581.44
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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.