Finding the Fourth Proportional to 862,320,571.13, 1,293,491,121.09 and 240,497,969.79
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Solution
The fourth proportional to 862,320,571.13, 1,293,491,121.09 and 240,497,969.79 is: 360,749,817.38
Step by Step Solution
- Step 1: Write the proportion equation
862,320,571.13 : 1,293,491,121.09 = 240,497,969.79 : x - Step 2: Convert to fraction form
862,320,571.13/1,293,491,121.09 = 240,497,969.79/x - Step 3: Cross multiply
862,320,571.13x = 1,293,491,121.09 × 240,497,969.79 - Step 4: Simplify right side
862,320,571.13x = 311,081,988,560,214,400 - Step 5: Solve for x
x = 311,081,988,560,214,400/862,320,571.13 - Step 6: Final answer
x = 360,749,817.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.