Finding the Fourth Proportional to 15,348,633.72, 21,181,286.22 and 8,473,119.48
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Solution
The fourth proportional to 15,348,633.72, 21,181,286.22 and 8,473,119.48 is: 11,692,999.66
Step by Step Solution
- Step 1: Write the proportion equation
15,348,633.72 : 21,181,286.22 = 8,473,119.48 : x - Step 2: Convert to fraction form
15,348,633.72/21,181,286.22 = 8,473,119.48/x - Step 3: Cross multiply
15,348,633.72x = 21,181,286.22 × 8,473,119.48 - Step 4: Simplify right side
15,348,633.72x = 179,471,568,882,137.56 - Step 5: Solve for x
x = 179,471,568,882,137.56/15,348,633.72 - Step 6: Final answer
x = 11,692,999.66
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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.