Home / 418,212,324.80-627,318,487.20-280,462,817.60

Finding the Fourth Proportional to 418,212,324.80, 627,318,487.20 and 280,462,817.60

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Solution

The fourth proportional to 418,212,324.80, 627,318,487.20 and 280,462,817.60 is: 420,694,226.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,212,324.80 : 627,318,487.20 = 280,462,817.60 : x
  2. Step 2: Convert to fraction form
    418,212,324.80/627,318,487.20 = 280,462,817.60/x
  3. Step 3: Cross multiply
    418,212,324.80x = 627,318,487.20 × 280,462,817.60
  4. Step 4: Simplify right side
    418,212,324.80x = 175,939,510,452,681,568
  5. Step 5: Solve for x
    x = 175,939,510,452,681,568/418,212,324.80
  6. Step 6: Final answer
    x = 420,694,226.40

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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.