Finding the Fourth Proportional to 19,642,401.31, 27,097,125.42 and 15,261,504.97
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Solution
The fourth proportional to 19,642,401.31, 27,097,125.42 and 15,261,504.97 is: 21,053,582.39
Step by Step Solution
- Step 1: Write the proportion equation
19,642,401.31 : 27,097,125.42 = 15,261,504.97 : x - Step 2: Convert to fraction form
19,642,401.31/27,097,125.42 = 15,261,504.97/x - Step 3: Cross multiply
19,642,401.31x = 27,097,125.42 × 15,261,504.97 - Step 4: Simplify right side
19,642,401.31x = 413,542,914,270,043.38 - Step 5: Solve for x
x = 413,542,914,270,043.38/19,642,401.31 - Step 6: Final answer
x = 21,053,582.39
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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.