Finding the Fourth Proportional to 142,846,704.26, 197,130,107.10 and 79,268,348.68
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Solution
The fourth proportional to 142,846,704.26, 197,130,107.10 and 79,268,348.68 is: 109,391,239.69
Step by Step Solution
- Step 1: Write the proportion equation
142,846,704.26 : 197,130,107.10 = 79,268,348.68 : x - Step 2: Convert to fraction form
142,846,704.26/197,130,107.10 = 79,268,348.68/x - Step 3: Cross multiply
142,846,704.26x = 197,130,107.10 × 79,268,348.68 - Step 4: Simplify right side
142,846,704.26x = 15,626,178,064,928,544 - Step 5: Solve for x
x = 15,626,178,064,928,544/142,846,704.26 - Step 6: Final answer
x = 109,391,239.69
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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.