Finding the Fourth Proportional to 18,649,832.40, 27,951,251.96 and 9,992,461.68
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Solution
The fourth proportional to 18,649,832.40, 27,951,251.96 and 9,992,461.68 is: 14,976,103.17
Step by Step Solution
- Step 1: Write the proportion equation
18,649,832.40 : 27,951,251.96 = 9,992,461.68 : x - Step 2: Convert to fraction form
18,649,832.40/27,951,251.96 = 9,992,461.68/x - Step 3: Cross multiply
18,649,832.40x = 27,951,251.96 × 9,992,461.68 - Step 4: Simplify right side
18,649,832.40x = 279,301,814,118,324.91 - Step 5: Solve for x
x = 279,301,814,118,324.91/18,649,832.40 - Step 6: Final answer
x = 14,976,103.17
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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.