Finding the Fourth Proportional to 19,431,470.92, 26,805,744.46 and 11,585,449.66
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Solution
The fourth proportional to 19,431,470.92, 26,805,744.46 and 11,585,449.66 is: 15,982,145.89
Step by Step Solution
- Step 1: Write the proportion equation
19,431,470.92 : 26,805,744.46 = 11,585,449.66 : x - Step 2: Convert to fraction form
19,431,470.92/26,805,744.46 = 11,585,449.66/x - Step 3: Cross multiply
19,431,470.92x = 26,805,744.46 × 11,585,449.66 - Step 4: Simplify right side
19,431,470.92x = 310,556,603,040,153.88 - Step 5: Solve for x
x = 310,556,603,040,153.88/19,431,470.92 - Step 6: Final answer
x = 15,982,145.89
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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.