Home / 5,378,171.72-7,421,781.78-2,930,804.68

Finding the Fourth Proportional to 5,378,171.72, 7,421,781.78 and 2,930,804.68

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Solution

The fourth proportional to 5,378,171.72, 7,421,781.78 and 2,930,804.68 is: 4,044,458.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,171.72 : 7,421,781.78 = 2,930,804.68 : x
  2. Step 2: Convert to fraction form
    5,378,171.72/7,421,781.78 = 2,930,804.68/x
  3. Step 3: Cross multiply
    5,378,171.72x = 7,421,781.78 × 2,930,804.68
  4. Step 4: Simplify right side
    5,378,171.72x = 21,751,792,774,762.73
  5. Step 5: Solve for x
    x = 21,751,792,774,762.73/5,378,171.72
  6. Step 6: Final answer
    x = 4,044,458.58

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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.