Finding the Fourth Proportional to 201,804,295,761.36, 278,358,707,145.78 and 129,431,727,038.88
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Solution
The fourth proportional to 201,804,295,761.36, 278,358,707,145.78 and 129,431,727,038.88 is: 178,531,621,768.81
Step by Step Solution
- Step 1: Write the proportion equation
201,804,295,761.36 : 278,358,707,145.78 = 129,431,727,038.88 : x - Step 2: Convert to fraction form
201,804,295,761.36/278,358,707,145.78 = 129,431,727,038.88/x - Step 3: Cross multiply
201,804,295,761.36x = 278,358,707,145.78 × 129,431,727,038.88 - Step 4: Simplify right side
201,804,295,761.36x = 36,028,448,202,188,138,741,760 - Step 5: Solve for x
x = 36,028,448,202,188,138,741,760/201,804,295,761.36 - Step 6: Final answer
x = 178,531,621,768.81
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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.