Home / 1,042,422,175.76-1,563,286,048.68-420,476,771.60

Finding the Fourth Proportional to 1,042,422,175.76, 1,563,286,048.68 and 420,476,771.60

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Solution

The fourth proportional to 1,042,422,175.76, 1,563,286,048.68 and 420,476,771.60 is: 630,575,102.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,422,175.76 : 1,563,286,048.68 = 420,476,771.60 : x
  2. Step 2: Convert to fraction form
    1,042,422,175.76/1,563,286,048.68 = 420,476,771.60/x
  3. Step 3: Cross multiply
    1,042,422,175.76x = 1,563,286,048.68 × 420,476,771.60
  4. Step 4: Simplify right side
    1,042,422,175.76x = 657,325,470,836,286,848
  5. Step 5: Solve for x
    x = 657,325,470,836,286,848/1,042,422,175.76
  6. Step 6: Final answer
    x = 630,575,102.99

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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.