Home / 1,455,351,348.60-2,183,027,022.90-420,245,998.20

Finding the Fourth Proportional to 1,455,351,348.60, 2,183,027,022.90 and 420,245,998.20

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Solution

The fourth proportional to 1,455,351,348.60, 2,183,027,022.90 and 420,245,998.20 is: 630,368,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,351,348.60 : 2,183,027,022.90 = 420,245,998.20 : x
  2. Step 2: Convert to fraction form
    1,455,351,348.60/2,183,027,022.90 = 420,245,998.20/x
  3. Step 3: Cross multiply
    1,455,351,348.60x = 2,183,027,022.90 × 420,245,998.20
  4. Step 4: Simplify right side
    1,455,351,348.60x = 917,408,370,336,184,832
  5. Step 5: Solve for x
    x = 917,408,370,336,184,832/1,455,351,348.60
  6. Step 6: Final answer
    x = 630,368,997.30

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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.