Finding the Fourth Proportional to 20,164,251.96, 27,821,884.77 and 11,461,739.54
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Solution
The fourth proportional to 20,164,251.96, 27,821,884.77 and 11,461,739.54 is: 15,814,481.85
Step by Step Solution
- Step 1: Write the proportion equation
20,164,251.96 : 27,821,884.77 = 11,461,739.54 : x - Step 2: Convert to fraction form
20,164,251.96/27,821,884.77 = 11,461,739.54/x - Step 3: Cross multiply
20,164,251.96x = 27,821,884.77 × 11,461,739.54 - Step 4: Simplify right side
20,164,251.96x = 318,887,196,606,523.38 - Step 5: Solve for x
x = 318,887,196,606,523.38/20,164,251.96 - Step 6: Final answer
x = 15,814,481.85
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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.