Home / 383,107,699.66-528,688,605.32-206,895,678.06

Finding the Fourth Proportional to 383,107,699.66, 528,688,605.32 and 206,895,678.06

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Solution

The fourth proportional to 383,107,699.66, 528,688,605.32 and 206,895,678.06 is: 285,516,024.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,107,699.66 : 528,688,605.32 = 206,895,678.06 : x
  2. Step 2: Convert to fraction form
    383,107,699.66/528,688,605.32 = 206,895,678.06/x
  3. Step 3: Cross multiply
    383,107,699.66x = 528,688,605.32 × 206,895,678.06
  4. Step 4: Simplify right side
    383,107,699.66x = 109,383,387,480,277,120
  5. Step 5: Solve for x
    x = 109,383,387,480,277,120/383,107,699.66
  6. Step 6: Final answer
    x = 285,516,024.81

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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.