Finding the Fourth Proportional to 3,449,138.18, 5,175,921.54 and 2,313,183.20
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Solution
The fourth proportional to 3,449,138.18, 5,175,921.54 and 2,313,183.20 is: 3,471,259.81
Step by Step Solution
- Step 1: Write the proportion equation
3,449,138.18 : 5,175,921.54 = 2,313,183.20 : x - Step 2: Convert to fraction form
3,449,138.18/5,175,921.54 = 2,313,183.20/x - Step 3: Cross multiply
3,449,138.18x = 5,175,921.54 × 2,313,183.20 - Step 4: Simplify right side
3,449,138.18x = 11,972,854,750,846.13 - Step 5: Solve for x
x = 11,972,854,750,846.13/3,449,138.18 - Step 6: Final answer
x = 3,471,259.81
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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.