Finding the Fourth Proportional to 2,659,392,076.80, 3,989,088,115.20 and 2,532,413,107.20
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Solution
The fourth proportional to 2,659,392,076.80, 3,989,088,115.20 and 2,532,413,107.20 is: 3,798,619,660.80
Step by Step Solution
- Step 1: Write the proportion equation
2,659,392,076.80 : 3,989,088,115.20 = 2,532,413,107.20 : x - Step 2: Convert to fraction form
2,659,392,076.80/3,989,088,115.20 = 2,532,413,107.20/x - Step 3: Cross multiply
2,659,392,076.80x = 3,989,088,115.20 × 2,532,413,107.20 - Step 4: Simplify right side
2,659,392,076.80x = 10,102,019,028,708,222,976 - Step 5: Solve for x
x = 10,102,019,028,708,222,976/2,659,392,076.80 - Step 6: Final answer
x = 3,798,619,660.80
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1.5x scale
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.