Finding the Fourth Proportional to 212,486,949.73, 293,224,249.09 and 118,396,235.12
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Solution
The fourth proportional to 212,486,949.73, 293,224,249.09 and 118,396,235.12 is: 163,382,490.94
Step by Step Solution
- Step 1: Write the proportion equation
212,486,949.73 : 293,224,249.09 = 118,396,235.12 : x - Step 2: Convert to fraction form
212,486,949.73/293,224,249.09 = 118,396,235.12/x - Step 3: Cross multiply
212,486,949.73x = 293,224,249.09 × 118,396,235.12 - Step 4: Simplify right side
212,486,949.73x = 34,716,647,138,145,084 - Step 5: Solve for x
x = 34,716,647,138,145,084/212,486,949.73 - Step 6: Final answer
x = 163,382,490.94
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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.