Finding the Fourth Proportional to 18,630,145.28, 25,707,543.68 and 10,481,245.44
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Solution
The fourth proportional to 18,630,145.28, 25,707,543.68 and 10,481,245.44 is: 14,462,961.56
Step by Step Solution
- Step 1: Write the proportion equation
18,630,145.28 : 25,707,543.68 = 10,481,245.44 : x - Step 2: Convert to fraction form
18,630,145.28/25,707,543.68 = 10,481,245.44/x - Step 3: Cross multiply
18,630,145.28x = 25,707,543.68 × 10,481,245.44 - Step 4: Simplify right side
18,630,145.28x = 269,447,074,969,600.81 - Step 5: Solve for x
x = 269,447,074,969,600.81/18,630,145.28 - Step 6: Final answer
x = 14,462,961.56
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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.