Finding the Fourth Proportional to 1,891,176,360.20, 2,836,764,540.30 and 664,344,811.70
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Solution
The fourth proportional to 1,891,176,360.20, 2,836,764,540.30 and 664,344,811.70 is: 996,517,217.55
Step by Step Solution
- Step 1: Write the proportion equation
1,891,176,360.20 : 2,836,764,540.30 = 664,344,811.70 : x - Step 2: Convert to fraction form
1,891,176,360.20/2,836,764,540.30 = 664,344,811.70/x - Step 3: Cross multiply
1,891,176,360.20x = 2,836,764,540.30 × 664,344,811.70 - Step 4: Simplify right side
1,891,176,360.20x = 1,884,589,804,362,840,832 - Step 5: Solve for x
x = 1,884,589,804,362,840,832/1,891,176,360.20 - Step 6: Final answer
x = 996,517,217.55
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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.