Finding the Fourth Proportional to 499,568,286.75, 689,409,690.13 and 276,553,693.49
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Solution
The fourth proportional to 499,568,286.75, 689,409,690.13 and 276,553,693.49 is: 381,647,116.50
Step by Step Solution
- Step 1: Write the proportion equation
499,568,286.75 : 689,409,690.13 = 276,553,693.49 : x - Step 2: Convert to fraction form
499,568,286.75/689,409,690.13 = 276,553,693.49/x - Step 3: Cross multiply
499,568,286.75x = 689,409,690.13 × 276,553,693.49 - Step 4: Simplify right side
499,568,286.75x = 190,658,796,133,247,904 - Step 5: Solve for x
x = 190,658,796,133,247,904/499,568,286.75 - Step 6: Final answer
x = 381,647,116.50
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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.