Home / 90,609,368.37-135,858,429.35-35,212,520.78

Finding the Fourth Proportional to 90,609,368.37, 135,858,429.35 and 35,212,520.78

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Solution

The fourth proportional to 90,609,368.37, 135,858,429.35 and 35,212,520.78 is: 52,797,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,609,368.37 : 135,858,429.35 = 35,212,520.78 : x
  2. Step 2: Convert to fraction form
    90,609,368.37/135,858,429.35 = 35,212,520.78/x
  3. Step 3: Cross multiply
    90,609,368.37x = 135,858,429.35 × 35,212,520.78
  4. Step 4: Simplify right side
    90,609,368.37x = 4,783,917,765,769,682
  5. Step 5: Solve for x
    x = 4,783,917,765,769,682/90,609,368.37
  6. Step 6: Final answer
    x = 52,797,164.93

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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.