Finding the Fourth Proportional to 383,107,716.36, 528,688,628.46 and 206,895,694.68
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Solution
The fourth proportional to 383,107,716.36, 528,688,628.46 and 206,895,694.68 is: 285,516,047.79
Step by Step Solution
- Step 1: Write the proportion equation
383,107,716.36 : 528,688,628.46 = 206,895,694.68 : x - Step 2: Convert to fraction form
383,107,716.36/528,688,628.46 = 206,895,694.68/x - Step 3: Cross multiply
383,107,716.36x = 528,688,628.46 × 206,895,694.68 - Step 4: Simplify right side
383,107,716.36x = 109,383,401,054,648,112 - Step 5: Solve for x
x = 109,383,401,054,648,112/383,107,716.36 - Step 6: Final answer
x = 285,516,047.79
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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.