Finding the Fourth Proportional to 20,097,857.63, 27,735,057.20 and 11,276,091.09
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Solution
The fourth proportional to 20,097,857.63, 27,735,057.20 and 11,276,091.09 is: 15,561,013.37
Step by Step Solution
- Step 1: Write the proportion equation
20,097,857.63 : 27,735,057.20 = 11,276,091.09 : x - Step 2: Convert to fraction form
20,097,857.63/27,735,057.20 = 11,276,091.09/x - Step 3: Cross multiply
20,097,857.63x = 27,735,057.20 × 11,276,091.09 - Step 4: Simplify right side
20,097,857.63x = 312,743,031,401,750.56 - Step 5: Solve for x
x = 312,743,031,401,750.56/20,097,857.63 - Step 6: Final answer
x = 15,561,013.37
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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.