Home / 808,494,380.40-1,212,741,570.60-445,697,324.40

Finding the Fourth Proportional to 808,494,380.40, 1,212,741,570.60 and 445,697,324.40

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Solution

The fourth proportional to 808,494,380.40, 1,212,741,570.60 and 445,697,324.40 is: 668,545,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,494,380.40 : 1,212,741,570.60 = 445,697,324.40 : x
  2. Step 2: Convert to fraction form
    808,494,380.40/1,212,741,570.60 = 445,697,324.40/x
  3. Step 3: Cross multiply
    808,494,380.40x = 1,212,741,570.60 × 445,697,324.40
  4. Step 4: Simplify right side
    808,494,380.40x = 540,515,673,205,073,600
  5. Step 5: Solve for x
    x = 540,515,673,205,073,600/808,494,380.40
  6. Step 6: Final answer
    x = 668,545,986.60

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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.