Finding the Fourth Proportional to 19,782,371.54, 27,286,042.56 and 13,914,450.98
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Solution
The fourth proportional to 19,782,371.54, 27,286,042.56 and 13,914,450.98 is: 19,192,355.22
Step by Step Solution
- Step 1: Write the proportion equation
19,782,371.54 : 27,286,042.56 = 13,914,450.98 : x - Step 2: Convert to fraction form
19,782,371.54/27,286,042.56 = 13,914,450.98/x - Step 3: Cross multiply
19,782,371.54x = 27,286,042.56 × 13,914,450.98 - Step 4: Simplify right side
19,782,371.54x = 379,670,301,502,883.44 - Step 5: Solve for x
x = 379,670,301,502,883.44/19,782,371.54 - Step 6: Final answer
x = 19,192,355.22
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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.