Home / 20,885,686.32-31,328,486.32-11,783,652

Finding the Fourth Proportional to 20,885,686.32, 31,328,486.32 and 11,783,652

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Solution

The fourth proportional to 20,885,686.32, 31,328,486.32 and 11,783,652 is: 17,675,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,686.32 : 31,328,486.32 = 11,783,652 : x
  2. Step 2: Convert to fraction form
    20,885,686.32/31,328,486.32 = 11,783,652/x
  3. Step 3: Cross multiply
    20,885,686.32x = 31,328,486.32 × 11,783,652
  4. Step 4: Simplify right side
    20,885,686.32x = 369,163,980,481,640.62
  5. Step 5: Solve for x
    x = 369,163,980,481,640.62/20,885,686.32
  6. Step 6: Final answer
    x = 17,675,453.65

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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.