Finding the Fourth Proportional to 28,263,716.40, 42,458,560.20 and 27,115,978.80
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Solution
The fourth proportional to 28,263,716.40, 42,458,560.20 and 27,115,978.80 is: 40,734,396.07
Step by Step Solution
- Step 1: Write the proportion equation
28,263,716.40 : 42,458,560.20 = 27,115,978.80 : x - Step 2: Convert to fraction form
28,263,716.40/42,458,560.20 = 27,115,978.80/x - Step 3: Cross multiply
28,263,716.40x = 42,458,560.20 × 27,115,978.80 - Step 4: Simplify right side
28,263,716.40x = 1,151,305,418,261,723.75 - Step 5: Solve for x
x = 1,151,305,418,261,723.75/28,263,716.40 - Step 6: Final answer
x = 40,734,396.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.