Finding the Fourth Proportional to 282,453,027.87, 389,789,839.69 and 155,299,078.68
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Solution
The fourth proportional to 282,453,027.87, 389,789,839.69 and 155,299,078.68 is: 214,315,291.43
Step by Step Solution
- Step 1: Write the proportion equation
282,453,027.87 : 389,789,839.69 = 155,299,078.68 : x - Step 2: Convert to fraction form
282,453,027.87/389,789,839.69 = 155,299,078.68/x - Step 3: Cross multiply
282,453,027.87x = 389,789,839.69 × 155,299,078.68 - Step 4: Simplify right side
282,453,027.87x = 60,534,002,981,701,616 - Step 5: Solve for x
x = 60,534,002,981,701,616/282,453,027.87 - Step 6: Final answer
x = 214,315,291.43
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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.