Finding the Fourth Proportional to 17,644,660.80, 26,431,999.20 and 15,540,475.20
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Solution
The fourth proportional to 17,644,660.80, 26,431,999.20 and 15,540,475.20 is: 23,279,893.71
Step by Step Solution
- Step 1: Write the proportion equation
17,644,660.80 : 26,431,999.20 = 15,540,475.20 : x - Step 2: Convert to fraction form
17,644,660.80/26,431,999.20 = 15,540,475.20/x - Step 3: Cross multiply
17,644,660.80x = 26,431,999.20 × 15,540,475.20 - Step 4: Simplify right side
17,644,660.80x = 410,765,828,054,019.81 - Step 5: Solve for x
x = 410,765,828,054,019.81/17,644,660.80 - Step 6: Final answer
x = 23,279,893.71
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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.