Home / 859,675,804.64-1,289,512,919.20-269,470,289.60

Finding the Fourth Proportional to 859,675,804.64, 1,289,512,919.20 and 269,470,289.60

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Solution

The fourth proportional to 859,675,804.64, 1,289,512,919.20 and 269,470,289.60 is: 404,205,187.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,675,804.64 : 1,289,512,919.20 = 269,470,289.60 : x
  2. Step 2: Convert to fraction form
    859,675,804.64/1,289,512,919.20 = 269,470,289.60/x
  3. Step 3: Cross multiply
    859,675,804.64x = 1,289,512,919.20 × 269,470,289.60
  4. Step 4: Simplify right side
    859,675,804.64x = 347,485,419,779,765,440
  5. Step 5: Solve for x
    x = 347,485,419,779,765,440/859,675,804.64
  6. Step 6: Final answer
    x = 404,205,187.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.