Home / 280,118,344.77-420,197,670.36-107,595,165.78

Finding the Fourth Proportional to 280,118,344.77, 420,197,670.36 and 107,595,165.78

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Solution

The fourth proportional to 280,118,344.77, 420,197,670.36 and 107,595,165.78 is: 161,400,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,118,344.77 : 420,197,670.36 = 107,595,165.78 : x
  2. Step 2: Convert to fraction form
    280,118,344.77/420,197,670.36 = 107,595,165.78/x
  3. Step 3: Cross multiply
    280,118,344.77x = 420,197,670.36 × 107,595,165.78
  4. Step 4: Simplify right side
    280,118,344.77x = 45,211,238,002,753,992
  5. Step 5: Solve for x
    x = 45,211,238,002,753,992/280,118,344.77
  6. Step 6: Final answer
    x = 161,400,489.64

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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.