Home / 682,939,930.40-1,023,066,202.80-409,498,445.60

Finding the Fourth Proportional to 682,939,930.40, 1,023,066,202.80 and 409,498,445.60

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Solution

The fourth proportional to 682,939,930.40, 1,023,066,202.80 and 409,498,445.60 is: 613,441,975.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,939,930.40 : 1,023,066,202.80 = 409,498,445.60 : x
  2. Step 2: Convert to fraction form
    682,939,930.40/1,023,066,202.80 = 409,498,445.60/x
  3. Step 3: Cross multiply
    682,939,930.40x = 1,023,066,202.80 × 409,498,445.60
  4. Step 4: Simplify right side
    682,939,930.40x = 418,944,019,792,494,400
  5. Step 5: Solve for x
    x = 418,944,019,792,494,400/682,939,930.40
  6. Step 6: Final answer
    x = 613,441,975.12

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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.