Home / 638,422,074.20-956,856,724.32-451,729,805.60

Finding the Fourth Proportional to 638,422,074.20, 956,856,724.32 and 451,729,805.60

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Solution

The fourth proportional to 638,422,074.20, 956,856,724.32 and 451,729,805.60 is: 677,045,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,422,074.20 : 956,856,724.32 = 451,729,805.60 : x
  2. Step 2: Convert to fraction form
    638,422,074.20/956,856,724.32 = 451,729,805.60/x
  3. Step 3: Cross multiply
    638,422,074.20x = 956,856,724.32 × 451,729,805.60
  4. Step 4: Simplify right side
    638,422,074.20x = 432,240,702,064,126,464
  5. Step 5: Solve for x
    x = 432,240,702,064,126,464/638,422,074.20
  6. Step 6: Final answer
    x = 677,045,358.44

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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.