Finding the Fourth Proportional to 3,761,619.35, 5,191,094.79 and 2,129,982.48
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Solution
The fourth proportional to 3,761,619.35, 5,191,094.79 and 2,129,982.48 is: 2,939,409.85
Step by Step Solution
- Step 1: Write the proportion equation
3,761,619.35 : 5,191,094.79 = 2,129,982.48 : x - Step 2: Convert to fraction form
3,761,619.35/5,191,094.79 = 2,129,982.48/x - Step 3: Cross multiply
3,761,619.35x = 5,191,094.79 × 2,129,982.48 - Step 4: Simplify right side
3,761,619.35x = 11,056,940,954,719.28 - Step 5: Solve for x
x = 11,056,940,954,719.28/3,761,619.35 - Step 6: Final answer
x = 2,939,409.85
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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.