Finding the Fourth Proportional to 121,053,919.03, 167,040,612.98 and 68,120,402.62
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Solution
The fourth proportional to 121,053,919.03, 167,040,612.98 and 68,120,402.62 is: 93,998,392.63
Step by Step Solution
- Step 1: Write the proportion equation
121,053,919.03 : 167,040,612.98 = 68,120,402.62 : x - Step 2: Convert to fraction form
121,053,919.03/167,040,612.98 = 68,120,402.62/x - Step 3: Cross multiply
121,053,919.03x = 167,040,612.98 × 68,120,402.62 - Step 4: Simplify right side
121,053,919.03x = 11,378,873,810,089,198 - Step 5: Solve for x
x = 11,378,873,810,089,198/121,053,919.03 - Step 6: Final answer
x = 93,998,392.63
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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.