Home / 383,107,715.60-528,688,627.32-206,895,694.05

Finding the Fourth Proportional to 383,107,715.60, 528,688,627.32 and 206,895,694.05

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Solution

The fourth proportional to 383,107,715.60, 528,688,627.32 and 206,895,694.05 is: 285,516,046.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,107,715.60 : 528,688,627.32 = 206,895,694.05 : x
  2. Step 2: Convert to fraction form
    383,107,715.60/528,688,627.32 = 206,895,694.05/x
  3. Step 3: Cross multiply
    383,107,715.60x = 528,688,627.32 × 206,895,694.05
  4. Step 4: Simplify right side
    383,107,715.60x = 109,383,400,485,713,200
  5. Step 5: Solve for x
    x = 109,383,400,485,713,200/383,107,715.60
  6. Step 6: Final answer
    x = 285,516,046.88

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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.