Home / 20,885,665.94-31,328,455.67-11,783,631.54

Finding the Fourth Proportional to 20,885,665.94, 31,328,455.67 and 11,783,631.54

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Solution

The fourth proportional to 20,885,665.94, 31,328,455.67 and 11,783,631.54 is: 17,675,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,665.94 : 31,328,455.67 = 11,783,631.54 : x
  2. Step 2: Convert to fraction form
    20,885,665.94/31,328,455.67 = 11,783,631.54/x
  3. Step 3: Cross multiply
    20,885,665.94x = 31,328,455.67 × 11,783,631.54
  4. Step 4: Simplify right side
    20,885,665.94x = 369,162,978,332,503.81
  5. Step 5: Solve for x
    x = 369,162,978,332,503.81/20,885,665.94
  6. Step 6: Final answer
    x = 17,675,422.91

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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.