Home / 383,191,886.99-528,805,015.25-206,979,881.60

Finding the Fourth Proportional to 383,191,886.99, 528,805,015.25 and 206,979,881.60

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Solution

The fourth proportional to 383,191,886.99, 528,805,015.25 and 206,979,881.60 is: 285,632,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,191,886.99 : 528,805,015.25 = 206,979,881.60 : x
  2. Step 2: Convert to fraction form
    383,191,886.99/528,805,015.25 = 206,979,881.60/x
  3. Step 3: Cross multiply
    383,191,886.99x = 528,805,015.25 × 206,979,881.60
  4. Step 4: Simplify right side
    383,191,886.99x = 109,451,999,442,252,272
  5. Step 5: Solve for x
    x = 109,451,999,442,252,272/383,191,886.99
  6. Step 6: Final answer
    x = 285,632,350.68

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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.