Finding the Fourth Proportional to 996,198,659.20, 1,492,282,449.60 and 689,836,700.80
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Solution
The fourth proportional to 996,198,659.20, 1,492,282,449.60 and 689,836,700.80 is: 1,033,359,352.76
Step by Step Solution
- Step 1: Write the proportion equation
996,198,659.20 : 1,492,282,449.60 = 689,836,700.80 : x - Step 2: Convert to fraction form
996,198,659.20/1,492,282,449.60 = 689,836,700.80/x - Step 3: Cross multiply
996,198,659.20x = 1,492,282,449.60 × 689,836,700.80 - Step 4: Simplify right side
996,198,659.20x = 1,029,431,201,693,806,080 - Step 5: Solve for x
x = 1,029,431,201,693,806,080/996,198,659.20 - Step 6: Final answer
x = 1,033,359,352.76
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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.