Finding the Fourth Proportional to 3,760,506.48, 5,189,820.24 and 2,129,201.28
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Solution
The fourth proportional to 3,760,506.48, 5,189,820.24 and 2,129,201.28 is: 2,938,479.69
Step by Step Solution
- Step 1: Write the proportion equation
3,760,506.48 : 5,189,820.24 = 2,129,201.28 : x - Step 2: Convert to fraction form
3,760,506.48/5,189,820.24 = 2,129,201.28/x - Step 3: Cross multiply
3,760,506.48x = 5,189,820.24 × 2,129,201.28 - Step 4: Simplify right side
3,760,506.48x = 11,050,171,897,977.91 - Step 5: Solve for x
x = 11,050,171,897,977.91/3,760,506.48 - Step 6: Final answer
x = 2,938,479.69
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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.