Finding the Fourth Proportional to 84,567,168, 126,850,752 and 20,741,760
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Solution
The fourth proportional to 84,567,168, 126,850,752 and 20,741,760 is: 31,112,640
Step by Step Solution
- Step 1: Write the proportion equation
84,567,168 : 126,850,752 = 20,741,760 : x - Step 2: Convert to fraction form
84,567,168/126,850,752 = 20,741,760/x - Step 3: Cross multiply
84,567,168x = 126,850,752 × 20,741,760 - Step 4: Simplify right side
84,567,168x = 2,631,107,853,803,520 - Step 5: Solve for x
x = 2,631,107,853,803,520/84,567,168 - Step 6: Final answer
x = 31,112,640
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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.