Finding the Fourth Proportional to 20,024,496.54, 29,987,755.20 and 18,083,607.75
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Solution
The fourth proportional to 20,024,496.54, 29,987,755.20 and 18,083,607.75 is: 27,081,170.37
Step by Step Solution
- Step 1: Write the proportion equation
20,024,496.54 : 29,987,755.20 = 18,083,607.75 : x - Step 2: Convert to fraction form
20,024,496.54/29,987,755.20 = 18,083,607.75/x - Step 3: Cross multiply
20,024,496.54x = 29,987,755.20 × 18,083,607.75 - Step 4: Simplify right side
20,024,496.54x = 542,286,802,339,822.81 - Step 5: Solve for x
x = 542,286,802,339,822.81/20,024,496.54 - Step 6: Final answer
x = 27,081,170.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.