Finding the Fourth Proportional to 20,062,128.45, 27,694,212.36 and 13,544,585.97
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Solution
The fourth proportional to 20,062,128.45, 27,694,212.36 and 13,544,585.97 is: 18,697,250.45
Step by Step Solution
- Step 1: Write the proportion equation
20,062,128.45 : 27,694,212.36 = 13,544,585.97 : x - Step 2: Convert to fraction form
20,062,128.45/27,694,212.36 = 13,544,585.97/x - Step 3: Cross multiply
20,062,128.45x = 27,694,212.36 × 13,544,585.97 - Step 4: Simplify right side
20,062,128.45x = 375,106,640,181,456.62 - Step 5: Solve for x
x = 375,106,640,181,456.62/20,062,128.45 - Step 6: Final answer
x = 18,697,250.45
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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.