Finding the Fourth Proportional to 206,630,701.80, 309,946,052.70 and 115,931,437.80
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Solution
The fourth proportional to 206,630,701.80, 309,946,052.70 and 115,931,437.80 is: 173,897,156.70
Step by Step Solution
- Step 1: Write the proportion equation
206,630,701.80 : 309,946,052.70 = 115,931,437.80 : x - Step 2: Convert to fraction form
206,630,701.80/309,946,052.70 = 115,931,437.80/x - Step 3: Cross multiply
206,630,701.80x = 309,946,052.70 × 115,931,437.80 - Step 4: Simplify right side
206,630,701.80x = 35,932,491,529,945,568 - Step 5: Solve for x
x = 35,932,491,529,945,568/206,630,701.80 - Step 6: Final answer
x = 173,897,156.70
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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.