Finding the Fourth Proportional to 18,986,590.24, 26,201,620.40 and 10,284,762.76
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Solution
The fourth proportional to 18,986,590.24, 26,201,620.40 and 10,284,762.76 is: 14,193,040.79
Step by Step Solution
- Step 1: Write the proportion equation
18,986,590.24 : 26,201,620.40 = 10,284,762.76 : x - Step 2: Convert to fraction form
18,986,590.24/26,201,620.40 = 10,284,762.76/x - Step 3: Cross multiply
18,986,590.24x = 26,201,620.40 × 10,284,762.76 - Step 4: Simplify right side
18,986,590.24x = 269,477,449,741,576.28 - Step 5: Solve for x
x = 269,477,449,741,576.28/18,986,590.24 - Step 6: Final answer
x = 14,193,040.79
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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.