Finding the Fourth Proportional to 198,950,122.08, 274,540,537.08 and 109,639,165.68
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Solution
The fourth proportional to 198,950,122.08, 274,540,537.08 and 109,639,165.68 is: 151,296,189.80
Step by Step Solution
- Step 1: Write the proportion equation
198,950,122.08 : 274,540,537.08 = 109,639,165.68 : x - Step 2: Convert to fraction form
198,950,122.08/274,540,537.08 = 109,639,165.68/x - Step 3: Cross multiply
198,950,122.08x = 274,540,537.08 × 109,639,165.68 - Step 4: Simplify right side
198,950,122.08x = 30,100,395,430,790,304 - Step 5: Solve for x
x = 30,100,395,430,790,304/198,950,122.08 - Step 6: Final answer
x = 151,296,189.80
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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.