Finding the Fourth Proportional to 18,279,826.08, 25,183,763.36 and 12,764,464.95
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Solution
The fourth proportional to 18,279,826.08, 25,183,763.36 and 12,764,464.95 is: 17,585,356.85
Step by Step Solution
- Step 1: Write the proportion equation
18,279,826.08 : 25,183,763.36 = 12,764,464.95 : x - Step 2: Convert to fraction form
18,279,826.08/25,183,763.36 = 12,764,464.95/x - Step 3: Cross multiply
18,279,826.08x = 25,183,763.36 × 12,764,464.95 - Step 4: Simplify right side
18,279,826.08x = 321,457,264,796,297.75 - Step 5: Solve for x
x = 321,457,264,796,297.75/18,279,826.08 - Step 6: Final answer
x = 17,585,356.85
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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.