Home / 470,162,847.76-648,786,163.62-276,790,871

Finding the Fourth Proportional to 470,162,847.76, 648,786,163.62 and 276,790,871

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Solution

The fourth proportional to 470,162,847.76, 648,786,163.62 and 276,790,871 is: 381,948,697.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,162,847.76 : 648,786,163.62 = 276,790,871 : x
  2. Step 2: Convert to fraction form
    470,162,847.76/648,786,163.62 = 276,790,871/x
  3. Step 3: Cross multiply
    470,162,847.76x = 648,786,163.62 × 276,790,871
  4. Step 4: Simplify right side
    470,162,847.76x = 179,578,087,321,128,320
  5. Step 5: Solve for x
    x = 179,578,087,321,128,320/470,162,847.76
  6. Step 6: Final answer
    x = 381,948,697.51

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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.