Finding the Fourth Proportional to 2,305,212,248.28, 3,181,193,968.54 and 1,247,940,221.60
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Solution
The fourth proportional to 2,305,212,248.28, 3,181,193,968.54 and 1,247,940,221.60 is: 1,722,158,082.85
Step by Step Solution
- Step 1: Write the proportion equation
2,305,212,248.28 : 3,181,193,968.54 = 1,247,940,221.60 : x - Step 2: Convert to fraction form
2,305,212,248.28/3,181,193,968.54 = 1,247,940,221.60/x - Step 3: Cross multiply
2,305,212,248.28x = 3,181,193,968.54 × 1,247,940,221.60 - Step 4: Simplify right side
2,305,212,248.28x = 3,969,939,906,052,390,912 - Step 5: Solve for x
x = 3,969,939,906,052,390,912/2,305,212,248.28 - Step 6: Final answer
x = 1,722,158,082.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.