Home / 856,978,049.70-1,285,467,074.55-448,159,515.30

Finding the Fourth Proportional to 856,978,049.70, 1,285,467,074.55 and 448,159,515.30

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Solution

The fourth proportional to 856,978,049.70, 1,285,467,074.55 and 448,159,515.30 is: 672,239,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,978,049.70 : 1,285,467,074.55 = 448,159,515.30 : x
  2. Step 2: Convert to fraction form
    856,978,049.70/1,285,467,074.55 = 448,159,515.30/x
  3. Step 3: Cross multiply
    856,978,049.70x = 1,285,467,074.55 × 448,159,515.30
  4. Step 4: Simplify right side
    856,978,049.70x = 576,094,301,064,436,928
  5. Step 5: Solve for x
    x = 576,094,301,064,436,928/856,978,049.70
  6. Step 6: Final answer
    x = 672,239,272.95

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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.