Home / 800,809,266.30-1,201,213,899.45-340,762,443.90

Finding the Fourth Proportional to 800,809,266.30, 1,201,213,899.45 and 340,762,443.90

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Solution

The fourth proportional to 800,809,266.30, 1,201,213,899.45 and 340,762,443.90 is: 511,143,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,809,266.30 : 1,201,213,899.45 = 340,762,443.90 : x
  2. Step 2: Convert to fraction form
    800,809,266.30/1,201,213,899.45 = 340,762,443.90/x
  3. Step 3: Cross multiply
    800,809,266.30x = 1,201,213,899.45 × 340,762,443.90
  4. Step 4: Simplify right side
    800,809,266.30x = 409,328,584,023,230,848
  5. Step 5: Solve for x
    x = 409,328,584,023,230,848/800,809,266.30
  6. Step 6: Final answer
    x = 511,143,665.85

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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.