Finding the Fourth Proportional to 3,997,785.12, 5,516,926.96 and 2,162,245.44
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Solution
The fourth proportional to 3,997,785.12, 5,516,926.96 and 2,162,245.44 is: 2,983,889.78
Step by Step Solution
- Step 1: Write the proportion equation
3,997,785.12 : 5,516,926.96 = 2,162,245.44 : x - Step 2: Convert to fraction form
3,997,785.12/5,516,926.96 = 2,162,245.44/x - Step 3: Cross multiply
3,997,785.12x = 5,516,926.96 × 2,162,245.44 - Step 4: Simplify right side
3,997,785.12x = 11,928,950,162,073.06 - Step 5: Solve for x
x = 11,928,950,162,073.06/3,997,785.12 - Step 6: Final answer
x = 2,983,889.78
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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.