Finding the Fourth Proportional to 3,859,105.13, 5,325,528.19 and 2,116,738.62
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Solution
The fourth proportional to 3,859,105.13, 5,325,528.19 and 2,116,738.62 is: 2,921,079.06
Step by Step Solution
- Step 1: Write the proportion equation
3,859,105.13 : 5,325,528.19 = 2,116,738.62 : x - Step 2: Convert to fraction form
3,859,105.13/5,325,528.19 = 2,116,738.62/x - Step 3: Cross multiply
3,859,105.13x = 5,325,528.19 × 2,116,738.62 - Step 4: Simplify right side
3,859,105.13x = 11,272,751,191,671.70 - Step 5: Solve for x
x = 11,272,751,191,671.70/3,859,105.13 - Step 6: Final answer
x = 2,921,079.06
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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.