Finding the Fourth Proportional to 1,891,176,355.70, 2,836,764,533.55 and 664,344,807.20
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Solution
The fourth proportional to 1,891,176,355.70, 2,836,764,533.55 and 664,344,807.20 is: 996,517,210.80
Step by Step Solution
- Step 1: Write the proportion equation
1,891,176,355.70 : 2,836,764,533.55 = 664,344,807.20 : x - Step 2: Convert to fraction form
1,891,176,355.70/2,836,764,533.55 = 664,344,807.20/x - Step 3: Cross multiply
1,891,176,355.70x = 2,836,764,533.55 × 664,344,807.20 - Step 4: Simplify right side
1,891,176,355.70x = 1,884,589,787,113,072,896 - Step 5: Solve for x
x = 1,884,589,787,113,072,896/1,891,176,355.70 - Step 6: Final answer
x = 996,517,210.80
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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.