Finding the Fourth Proportional to 13,431,256.26, 18,534,592.90 and 7,319,553.54
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Solution
The fourth proportional to 13,431,256.26, 18,534,592.90 and 7,319,553.54 is: 10,100,689.20
Step by Step Solution
- Step 1: Write the proportion equation
13,431,256.26 : 18,534,592.90 = 7,319,553.54 : x - Step 2: Convert to fraction form
13,431,256.26/18,534,592.90 = 7,319,553.54/x - Step 3: Cross multiply
13,431,256.26x = 18,534,592.90 × 7,319,553.54 - Step 4: Simplify right side
13,431,256.26x = 135,664,944,944,383.14 - Step 5: Solve for x
x = 135,664,944,944,383.14/13,431,256.26 - Step 6: Final answer
x = 10,100,689.20
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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.