Finding the Fourth Proportional to 2,080,156,142.20, 3,120,696,107.70 and 699,931,694.20
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Solution
The fourth proportional to 2,080,156,142.20, 3,120,696,107.70 and 699,931,694.20 is: 1,050,052,959.70
Step by Step Solution
- Step 1: Write the proportion equation
2,080,156,142.20 : 3,120,696,107.70 = 699,931,694.20 : x - Step 2: Convert to fraction form
2,080,156,142.20/3,120,696,107.70 = 699,931,694.20/x - Step 3: Cross multiply
2,080,156,142.20x = 3,120,696,107.70 × 699,931,694.20 - Step 4: Simplify right side
2,080,156,142.20x = 2,184,274,113,745,806,592 - Step 5: Solve for x
x = 2,184,274,113,745,806,592/2,080,156,142.20 - Step 6: Final answer
x = 1,050,052,959.70
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1.5x scale
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.