Finding the Fourth Proportional to 3,782,022.12, 5,219,437.14 and 2,150,581.32
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Solution
The fourth proportional to 3,782,022.12, 5,219,437.14 and 2,150,581.32 is: 2,967,942.45
Step by Step Solution
- Step 1: Write the proportion equation
3,782,022.12 : 5,219,437.14 = 2,150,581.32 : x - Step 2: Convert to fraction form
3,782,022.12/5,219,437.14 = 2,150,581.32/x - Step 3: Cross multiply
3,782,022.12x = 5,219,437.14 × 2,150,581.32 - Step 4: Simplify right side
3,782,022.12x = 11,224,824,014,198.22 - Step 5: Solve for x
x = 11,224,824,014,198.22/3,782,022.12 - Step 6: Final answer
x = 2,967,942.45
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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.