Finding the Fourth Proportional to 1,891,176,355.20, 2,836,764,532.80 and 664,344,806.70
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Solution
The fourth proportional to 1,891,176,355.20, 2,836,764,532.80 and 664,344,806.70 is: 996,517,210.05
Step by Step Solution
- Step 1: Write the proportion equation
1,891,176,355.20 : 2,836,764,532.80 = 664,344,806.70 : x - Step 2: Convert to fraction form
1,891,176,355.20/2,836,764,532.80 = 664,344,806.70/x - Step 3: Cross multiply
1,891,176,355.20x = 2,836,764,532.80 × 664,344,806.70 - Step 4: Simplify right side
1,891,176,355.20x = 1,884,589,785,196,432,128 - Step 5: Solve for x
x = 1,884,589,785,196,432,128/1,891,176,355.20 - Step 6: Final answer
x = 996,517,210.05
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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.