Finding the Fourth Proportional to 20,414,186.29, 28,171,492.12 and 11,121,727.43
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Solution
The fourth proportional to 20,414,186.29, 28,171,492.12 and 11,121,727.43 is: 15,347,937.56
Step by Step Solution
- Step 1: Write the proportion equation
20,414,186.29 : 28,171,492.12 = 11,121,727.43 : x - Step 2: Convert to fraction form
20,414,186.29/28,171,492.12 = 11,121,727.43/x - Step 3: Cross multiply
20,414,186.29x = 28,171,492.12 × 11,121,727.43 - Step 4: Simplify right side
20,414,186.29x = 313,315,656,541,806.25 - Step 5: Solve for x
x = 313,315,656,541,806.25/20,414,186.29 - Step 6: Final answer
x = 15,347,937.56
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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.