Finding the Fourth Proportional to 1,356,734,572.80, 2,035,101,859.20 and 484,321,027.20
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Solution
The fourth proportional to 1,356,734,572.80, 2,035,101,859.20 and 484,321,027.20 is: 726,481,540.80
Step by Step Solution
- Step 1: Write the proportion equation
1,356,734,572.80 : 2,035,101,859.20 = 484,321,027.20 : x - Step 2: Convert to fraction form
1,356,734,572.80/2,035,101,859.20 = 484,321,027.20/x - Step 3: Cross multiply
1,356,734,572.80x = 2,035,101,859.20 × 484,321,027.20 - Step 4: Simplify right side
1,356,734,572.80x = 985,642,622,904,373,760 - Step 5: Solve for x
x = 985,642,622,904,373,760/1,356,734,572.80 - Step 6: Final answer
x = 726,481,540.80
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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.