Finding the Fourth Proportional to 2,135,232,187.20, 3,202,848,280.80 and 1,275,268,795.20
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Solution
The fourth proportional to 2,135,232,187.20, 3,202,848,280.80 and 1,275,268,795.20 is: 1,912,903,192.80
Step by Step Solution
- Step 1: Write the proportion equation
2,135,232,187.20 : 3,202,848,280.80 = 1,275,268,795.20 : x - Step 2: Convert to fraction form
2,135,232,187.20/3,202,848,280.80 = 1,275,268,795.20/x - Step 3: Cross multiply
2,135,232,187.20x = 3,202,848,280.80 × 1,275,268,795.20 - Step 4: Simplify right side
2,135,232,187.20x = 4,084,492,468,264,207,872 - Step 5: Solve for x
x = 4,084,492,468,264,207,872/2,135,232,187.20 - Step 6: Final answer
x = 1,912,903,192.80
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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.