Home / 39,959,103.36-55,143,359.90-21,624,388.86

Finding the Fourth Proportional to 39,959,103.36, 55,143,359.90 and 21,624,388.86

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Solution

The fourth proportional to 39,959,103.36, 55,143,359.90 and 21,624,388.86 is: 29,841,546.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,959,103.36 : 55,143,359.90 = 21,624,388.86 : x
  2. Step 2: Convert to fraction form
    39,959,103.36/55,143,359.90 = 21,624,388.86/x
  3. Step 3: Cross multiply
    39,959,103.36x = 55,143,359.90 × 21,624,388.86
  4. Step 4: Simplify right side
    39,959,103.36x = 1,192,441,457,140,692
  5. Step 5: Solve for x
    x = 1,192,441,457,140,692/39,959,103.36
  6. Step 6: Final answer
    x = 29,841,546.91

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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.