Finding the Fourth Proportional to 2,720,149,231.60, 4,080,223,847.40 and 996,639,266.80
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Solution
The fourth proportional to 2,720,149,231.60, 4,080,223,847.40 and 996,639,266.80 is: 1,494,958,900.20
Step by Step Solution
- Step 1: Write the proportion equation
2,720,149,231.60 : 4,080,223,847.40 = 996,639,266.80 : x - Step 2: Convert to fraction form
2,720,149,231.60/4,080,223,847.40 = 996,639,266.80/x - Step 3: Cross multiply
2,720,149,231.60x = 4,080,223,847.40 × 996,639,266.80 - Step 4: Simplify right side
2,720,149,231.60x = 4,066,511,303,652,611,072 - Step 5: Solve for x
x = 4,066,511,303,652,611,072/2,720,149,231.60 - Step 6: Final answer
x = 1,494,958,900.20
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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.