Finding the Fourth Proportional to 105,383,723.36, 157,435,112.56 and 68,192,632.68
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Solution
The fourth proportional to 105,383,723.36, 157,435,112.56 and 68,192,632.68 is: 101,874,506.42
Step by Step Solution
- Step 1: Write the proportion equation
105,383,723.36 : 157,435,112.56 = 68,192,632.68 : x - Step 2: Convert to fraction form
105,383,723.36/157,435,112.56 = 68,192,632.68/x - Step 3: Cross multiply
105,383,723.36x = 157,435,112.56 × 68,192,632.68 - Step 4: Simplify right side
105,383,723.36x = 10,735,914,801,738,536 - Step 5: Solve for x
x = 10,735,914,801,738,536/105,383,723.36 - Step 6: Final answer
x = 101,874,506.42
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.