Finding the Fourth Proportional to 3,753,910.24, 5,180,661.68 and 2,122,333.06
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Solution
The fourth proportional to 3,753,910.24, 5,180,661.68 and 2,122,333.06 is: 2,928,969.76
Step by Step Solution
- Step 1: Write the proportion equation
3,753,910.24 : 5,180,661.68 = 2,122,333.06 : x - Step 2: Convert to fraction form
3,753,910.24/5,180,661.68 = 2,122,333.06/x - Step 3: Cross multiply
3,753,910.24x = 5,180,661.68 × 2,122,333.06 - Step 4: Simplify right side
3,753,910.24x = 10,995,089,556,139.14 - Step 5: Solve for x
x = 10,995,089,556,139.14/3,753,910.24 - Step 6: Final answer
x = 2,928,969.76
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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.