Home / 21,751,289.49-30,017,549.78-11,962,491.33

Finding the Fourth Proportional to 21,751,289.49, 30,017,549.78 and 11,962,491.33

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Solution

The fourth proportional to 21,751,289.49, 30,017,549.78 and 11,962,491.33 is: 16,508,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751,289.49 : 30,017,549.78 = 11,962,491.33 : x
  2. Step 2: Convert to fraction form
    21,751,289.49/30,017,549.78 = 11,962,491.33/x
  3. Step 3: Cross multiply
    21,751,289.49x = 30,017,549.78 × 11,962,491.33
  4. Step 4: Simplify right side
    21,751,289.49x = 359,084,678,991,093.44
  5. Step 5: Solve for x
    x = 359,084,678,991,093.44/21,751,289.49
  6. Step 6: Final answer
    x = 16,508,661.67

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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.