Home / 81,100,624.82-111,919,399.63-43,930,904.72

Finding the Fourth Proportional to 81,100,624.82, 111,919,399.63 and 43,930,904.72

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Solution

The fourth proportional to 81,100,624.82, 111,919,399.63 and 43,930,904.72 is: 60,624,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,100,624.82 : 111,919,399.63 = 43,930,904.72 : x
  2. Step 2: Convert to fraction form
    81,100,624.82/111,919,399.63 = 43,930,904.72/x
  3. Step 3: Cross multiply
    81,100,624.82x = 111,919,399.63 × 43,930,904.72
  4. Step 4: Simplify right side
    81,100,624.82x = 4,916,720,480,795,709
  5. Step 5: Solve for x
    x = 4,916,720,480,795,709/81,100,624.82
  6. Step 6: Final answer
    x = 60,624,939.60

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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.