Home / 483,780,658.10-667,598,078.70-285,605,990.69

Finding the Fourth Proportional to 483,780,658.10, 667,598,078.70 and 285,605,990.69

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Solution

The fourth proportional to 483,780,658.10, 667,598,078.70 and 285,605,990.69 is: 394,124,914.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,780,658.10 : 667,598,078.70 = 285,605,990.69 : x
  2. Step 2: Convert to fraction form
    483,780,658.10/667,598,078.70 = 285,605,990.69/x
  3. Step 3: Cross multiply
    483,780,658.10x = 667,598,078.70 × 285,605,990.69
  4. Step 4: Simplify right side
    483,780,658.10x = 190,670,010,646,516,128
  5. Step 5: Solve for x
    x = 190,670,010,646,516,128/483,780,658.10
  6. Step 6: Final answer
    x = 394,124,914.79

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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.