Finding the Fourth Proportional to 3,872,001.37, 5,343,491.73 and 2,129,744.47
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Solution
The fourth proportional to 3,872,001.37, 5,343,491.73 and 2,129,744.47 is: 2,939,118.79
Step by Step Solution
- Step 1: Write the proportion equation
3,872,001.37 : 5,343,491.73 = 2,129,744.47 : x - Step 2: Convert to fraction form
3,872,001.37/5,343,491.73 = 2,129,744.47/x - Step 3: Cross multiply
3,872,001.37x = 5,343,491.73 × 2,129,744.47 - Step 4: Simplify right side
3,872,001.37x = 11,380,271,962,458.23 - Step 5: Solve for x
x = 11,380,271,962,458.23/3,872,001.37 - Step 6: Final answer
x = 2,939,118.79
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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.