Finding the Fourth Proportional to 104,372,421.26, 144,029,995.12 and 57,965,664.54
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Solution
The fourth proportional to 104,372,421.26, 144,029,995.12 and 57,965,664.54 is: 79,990,425.44
Step by Step Solution
- Step 1: Write the proportion equation
104,372,421.26 : 144,029,995.12 = 57,965,664.54 : x - Step 2: Convert to fraction form
104,372,421.26/144,029,995.12 = 57,965,664.54/x - Step 3: Cross multiply
104,372,421.26x = 144,029,995.12 × 57,965,664.54 - Step 4: Simplify right side
104,372,421.26x = 8,348,794,380,823,757 - Step 5: Solve for x
x = 8,348,794,380,823,757/104,372,421.26 - Step 6: Final answer
x = 79,990,425.44
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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.