Finding the Fourth Proportional to 19,431,470.67, 26,805,744.12 and 11,585,449.41
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Solution
The fourth proportional to 19,431,470.67, 26,805,744.12 and 11,585,449.41 is: 15,982,145.54
Step by Step Solution
- Step 1: Write the proportion equation
19,431,470.67 : 26,805,744.12 = 11,585,449.41 : x - Step 2: Convert to fraction form
19,431,470.67/26,805,744.12 = 11,585,449.41/x - Step 3: Cross multiply
19,431,470.67x = 26,805,744.12 × 11,585,449.41 - Step 4: Simplify right side
19,431,470.67x = 310,556,592,399,665 - Step 5: Solve for x
x = 310,556,592,399,665/19,431,470.67 - Step 6: Final answer
x = 15,982,145.54
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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.