Finding the Fourth Proportional to 331,159,142.80, 496,738,714.20 and 201,700,115.20
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Solution
The fourth proportional to 331,159,142.80, 496,738,714.20 and 201,700,115.20 is: 302,550,172.80
Step by Step Solution
- Step 1: Write the proportion equation
331,159,142.80 : 496,738,714.20 = 201,700,115.20 : x - Step 2: Convert to fraction form
331,159,142.80/496,738,714.20 = 201,700,115.20/x - Step 3: Cross multiply
331,159,142.80x = 496,738,714.20 × 201,700,115.20 - Step 4: Simplify right side
331,159,142.80x = 100,192,255,878,439,872 - Step 5: Solve for x
x = 100,192,255,878,439,872/331,159,142.80 - Step 6: Final answer
x = 302,550,172.80
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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.