Home / 18,685,469.79-25,785,985.64-10,100,765.79

Finding the Fourth Proportional to 18,685,469.79, 25,785,985.64 and 10,100,765.79

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Solution

The fourth proportional to 18,685,469.79, 25,785,985.64 and 10,100,765.79 is: 13,939,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685,469.79 : 25,785,985.64 = 10,100,765.79 : x
  2. Step 2: Convert to fraction form
    18,685,469.79/25,785,985.64 = 10,100,765.79/x
  3. Step 3: Cross multiply
    18,685,469.79x = 25,785,985.64 × 10,100,765.79
  4. Step 4: Simplify right side
    18,685,469.79x = 260,458,201,563,439.41
  5. Step 5: Solve for x
    x = 260,458,201,563,439.41/18,685,469.79
  6. Step 6: Final answer
    x = 13,939,076.97

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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.