Finding the Fourth Proportional to 20,644,028.09, 28,489,227.09 and 11,352,114.35
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Solution
The fourth proportional to 20,644,028.09, 28,489,227.09 and 11,352,114.35 is: 15,666,175.33
Step by Step Solution
- Step 1: Write the proportion equation
20,644,028.09 : 28,489,227.09 = 11,352,114.35 : x - Step 2: Convert to fraction form
20,644,028.09/28,489,227.09 = 11,352,114.35/x - Step 3: Cross multiply
20,644,028.09x = 28,489,227.09 × 11,352,114.35 - Step 4: Simplify right side
20,644,028.09x = 323,412,963,668,797.75 - Step 5: Solve for x
x = 323,412,963,668,797.75/20,644,028.09 - Step 6: Final answer
x = 15,666,175.33
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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.