Finding the Fourth Proportional to 18,236,883.60, 27,351,826.20 and 5,457,805.20
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Solution
The fourth proportional to 18,236,883.60, 27,351,826.20 and 5,457,805.20 is: 8,185,660.58
Step by Step Solution
- Step 1: Write the proportion equation
18,236,883.60 : 27,351,826.20 = 5,457,805.20 : x - Step 2: Convert to fraction form
18,236,883.60/27,351,826.20 = 5,457,805.20/x - Step 3: Cross multiply
18,236,883.60x = 27,351,826.20 × 5,457,805.20 - Step 4: Simplify right side
18,236,883.60x = 149,280,939,263,856.25 - Step 5: Solve for x
x = 149,280,939,263,856.25/18,236,883.60 - Step 6: Final answer
x = 8,185,660.58
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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.