Home / 279,936,303.70-419,904,455.55-210,400,201.30

Finding the Fourth Proportional to 279,936,303.70, 419,904,455.55 and 210,400,201.30

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Solution

The fourth proportional to 279,936,303.70, 419,904,455.55 and 210,400,201.30 is: 315,600,301.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,303.70 : 419,904,455.55 = 210,400,201.30 : x
  2. Step 2: Convert to fraction form
    279,936,303.70/419,904,455.55 = 210,400,201.30/x
  3. Step 3: Cross multiply
    279,936,303.70x = 419,904,455.55 × 210,400,201.30
  4. Step 4: Simplify right side
    279,936,303.70x = 88,347,981,974,486,912
  5. Step 5: Solve for x
    x = 88,347,981,974,486,912/279,936,303.70
  6. Step 6: Final answer
    x = 315,600,301.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.