Finding the Fourth Proportional to 21,339,573.53, 29,448,609.21 and 11,550,015.99
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Solution
The fourth proportional to 21,339,573.53, 29,448,609.21 and 11,550,015.99 is: 15,939,020.85
Step by Step Solution
- Step 1: Write the proportion equation
21,339,573.53 : 29,448,609.21 = 11,550,015.99 : x - Step 2: Convert to fraction form
21,339,573.53/29,448,609.21 = 11,550,015.99/x - Step 3: Cross multiply
21,339,573.53x = 29,448,609.21 × 11,550,015.99 - Step 4: Simplify right side
21,339,573.53x = 340,131,907,258,761.31 - Step 5: Solve for x
x = 340,131,907,258,761.31/21,339,573.53 - Step 6: Final answer
x = 15,939,020.85
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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.