Finding the Fourth Proportional to 20,106,115.68, 27,745,266.44 and 11,284,747.36
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Solution
The fourth proportional to 20,106,115.68, 27,745,266.44 and 11,284,747.36 is: 15,572,292.89
Step by Step Solution
- Step 1: Write the proportion equation
20,106,115.68 : 27,745,266.44 = 11,284,747.36 : x - Step 2: Convert to fraction form
20,106,115.68/27,745,266.44 = 11,284,747.36/x - Step 3: Cross multiply
20,106,115.68x = 27,745,266.44 × 11,284,747.36 - Step 4: Simplify right side
20,106,115.68x = 313,098,322,211,286.62 - Step 5: Solve for x
x = 313,098,322,211,286.62/20,106,115.68 - Step 6: Final answer
x = 15,572,292.89
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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.