Finding the Fourth Proportional to 12,982,394.28, 17,821,888.07 and 11,143,660.36
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Solution
The fourth proportional to 12,982,394.28, 17,821,888.07 and 11,143,660.36 is: 15,297,722.70
Step by Step Solution
- Step 1: Write the proportion equation
12,982,394.28 : 17,821,888.07 = 11,143,660.36 : x - Step 2: Convert to fraction form
12,982,394.28/17,821,888.07 = 11,143,660.36/x - Step 3: Cross multiply
12,982,394.28x = 17,821,888.07 × 11,143,660.36 - Step 4: Simplify right side
12,982,394.28x = 198,601,067,570,297.59 - Step 5: Solve for x
x = 198,601,067,570,297.59/12,982,394.28 - Step 6: Final answer
x = 15,297,722.70
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.