Finding the Fourth Proportional to 13,093,212.24, 18,067,921.29 and 7,211,701.80
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Solution
The fourth proportional to 13,093,212.24, 18,067,921.29 and 7,211,701.80 is: 9,951,756.54
Step by Step Solution
- Step 1: Write the proportion equation
13,093,212.24 : 18,067,921.29 = 7,211,701.80 : x - Step 2: Convert to fraction form
13,093,212.24/18,067,921.29 = 7,211,701.80/x - Step 3: Cross multiply
13,093,212.24x = 18,067,921.29 × 7,211,701.80 - Step 4: Simplify right side
13,093,212.24x = 130,300,460,489,351.31 - Step 5: Solve for x
x = 130,300,460,489,351.31/13,093,212.24 - Step 6: Final answer
x = 9,951,756.54
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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.