Home / 1,285,743,196.98-1,928,408,189.45-352,848,122.64

Finding the Fourth Proportional to 1,285,743,196.98, 1,928,408,189.45 and 352,848,122.64

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Solution

The fourth proportional to 1,285,743,196.98, 1,928,408,189.45 and 352,848,122.64 is: 529,215,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,743,196.98 : 1,928,408,189.45 = 352,848,122.64 : x
  2. Step 2: Convert to fraction form
    1,285,743,196.98/1,928,408,189.45 = 352,848,122.64/x
  3. Step 3: Cross multiply
    1,285,743,196.98x = 1,928,408,189.45 × 352,848,122.64
  4. Step 4: Simplify right side
    1,285,743,196.98x = 680,435,209,329,269,632
  5. Step 5: Solve for x
    x = 680,435,209,329,269,632/1,285,743,196.98
  6. Step 6: Final answer
    x = 529,215,484.81

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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.