Finding the Fourth Proportional to 5,161,811.13, 7,123,482.23 and 2,838,883.21
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Solution
The fourth proportional to 5,161,811.13, 7,123,482.23 and 2,838,883.21 is: 3,917,759.40
Step by Step Solution
- Step 1: Write the proportion equation
5,161,811.13 : 7,123,482.23 = 2,838,883.21 : x - Step 2: Convert to fraction form
5,161,811.13/7,123,482.23 = 2,838,883.21/x - Step 3: Cross multiply
5,161,811.13x = 7,123,482.23 × 2,838,883.21 - Step 4: Simplify right side
5,161,811.13x = 20,222,734,067,477.23 - Step 5: Solve for x
x = 20,222,734,067,477.23/5,161,811.13 - Step 6: Final answer
x = 3,917,759.40
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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.