Finding the Fourth Proportional to 221,777,176.29, 306,040,105.44 and 121,285,767.39
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Solution
The fourth proportional to 221,777,176.29, 306,040,105.44 and 121,285,767.39 is: 167,367,578.85
Step by Step Solution
- Step 1: Write the proportion equation
221,777,176.29 : 306,040,105.44 = 121,285,767.39 : x - Step 2: Convert to fraction form
221,777,176.29/306,040,105.44 = 121,285,767.39/x - Step 3: Cross multiply
221,777,176.29x = 306,040,105.44 × 121,285,767.39 - Step 4: Simplify right side
221,777,176.29x = 37,118,309,040,406,912 - Step 5: Solve for x
x = 37,118,309,040,406,912/221,777,176.29 - Step 6: Final answer
x = 167,367,578.85
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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.