Finding the Fourth Proportional to 5,165,680.09, 7,128,704.11 and 2,842,840.06
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Solution
The fourth proportional to 5,165,680.09, 7,128,704.11 and 2,842,840.06 is: 3,923,155.37
Step by Step Solution
- Step 1: Write the proportion equation
5,165,680.09 : 7,128,704.11 = 2,842,840.06 : x - Step 2: Convert to fraction form
5,165,680.09/7,128,704.11 = 2,842,840.06/x - Step 3: Cross multiply
5,165,680.09x = 7,128,704.11 × 2,842,840.06 - Step 4: Simplify right side
5,165,680.09x = 20,265,765,584,151.13 - Step 5: Solve for x
x = 20,265,765,584,151.13/5,165,680.09 - Step 6: Final answer
x = 3,923,155.37
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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.