Home / 38,855,940.58-53,620,130.74-21,451,969.54

Finding the Fourth Proportional to 38,855,940.58, 53,620,130.74 and 21,451,969.54

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Solution

The fourth proportional to 38,855,940.58, 53,620,130.74 and 21,451,969.54 is: 29,603,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,855,940.58 : 53,620,130.74 = 21,451,969.54 : x
  2. Step 2: Convert to fraction form
    38,855,940.58/53,620,130.74 = 21,451,969.54/x
  3. Step 3: Cross multiply
    38,855,940.58x = 53,620,130.74 × 21,451,969.54
  4. Step 4: Simplify right side
    38,855,940.58x = 1,150,257,410,989,937.25
  5. Step 5: Solve for x
    x = 1,150,257,410,989,937.25/38,855,940.58
  6. Step 6: Final answer
    x = 29,603,128.74

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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.