Home / 51,201,286.92-76,802,004-20,909,149.92

Finding the Fourth Proportional to 51,201,286.92, 76,802,004 and 20,909,149.92

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Solution

The fourth proportional to 51,201,286.92, 76,802,004 and 20,909,149.92 is: 31,363,754.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,201,286.92 : 76,802,004 = 20,909,149.92 : x
  2. Step 2: Convert to fraction form
    51,201,286.92/76,802,004 = 20,909,149.92/x
  3. Step 3: Cross multiply
    51,201,286.92x = 76,802,004 × 20,909,149.92
  4. Step 4: Simplify right side
    51,201,286.92x = 1,605,864,615,792,439.75
  5. Step 5: Solve for x
    x = 1,605,864,615,792,439.75/51,201,286.92
  6. Step 6: Final answer
    x = 31,363,754.94

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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.