Home / 28,856,400.60-39,821,846.76-15,804,480.36

Finding the Fourth Proportional to 28,856,400.60, 39,821,846.76 and 15,804,480.36

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Solution

The fourth proportional to 28,856,400.60, 39,821,846.76 and 15,804,480.36 is: 21,810,190.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856,400.60 : 39,821,846.76 = 15,804,480.36 : x
  2. Step 2: Convert to fraction form
    28,856,400.60/39,821,846.76 = 15,804,480.36/x
  3. Step 3: Cross multiply
    28,856,400.60x = 39,821,846.76 × 15,804,480.36
  4. Step 4: Simplify right side
    28,856,400.60x = 629,363,595,017,349.62
  5. Step 5: Solve for x
    x = 629,363,595,017,349.62/28,856,400.60
  6. Step 6: Final answer
    x = 21,810,190.53

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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.