Home / 55,171,481.82-76,142,624.72-30,394,207.68

Finding the Fourth Proportional to 55,171,481.82, 76,142,624.72 and 30,394,207.68

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Solution

The fourth proportional to 55,171,481.82, 76,142,624.72 and 30,394,207.68 is: 41,947,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,171,481.82 : 76,142,624.72 = 30,394,207.68 : x
  2. Step 2: Convert to fraction form
    55,171,481.82/76,142,624.72 = 30,394,207.68/x
  3. Step 3: Cross multiply
    55,171,481.82x = 76,142,624.72 × 30,394,207.68
  4. Step 4: Simplify right side
    55,171,481.82x = 2,314,294,748,888,011
  5. Step 5: Solve for x
    x = 2,314,294,748,888,011/55,171,481.82
  6. Step 6: Final answer
    x = 41,947,300.90

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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.