Home / 34,238,648.69-47,244,291.49-20,820,469.28

Finding the Fourth Proportional to 34,238,648.69, 47,244,291.49 and 20,820,469.28

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Solution

The fourth proportional to 34,238,648.69, 47,244,291.49 and 20,820,469.28 is: 28,729,180.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,238,648.69 : 47,244,291.49 = 20,820,469.28 : x
  2. Step 2: Convert to fraction form
    34,238,648.69/47,244,291.49 = 20,820,469.28/x
  3. Step 3: Cross multiply
    34,238,648.69x = 47,244,291.49 × 20,820,469.28
  4. Step 4: Simplify right side
    34,238,648.69x = 983,648,319,622,910.50
  5. Step 5: Solve for x
    x = 983,648,319,622,910.50/34,238,648.69
  6. Step 6: Final answer
    x = 28,729,180.54

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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.