Home / 208,603,408.20-313,017,086.70-87,447,107.40

Finding the Fourth Proportional to 208,603,408.20, 313,017,086.70 and 87,447,107.40

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Solution

The fourth proportional to 208,603,408.20, 313,017,086.70 and 87,447,107.40 is: 131,217,601.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,603,408.20 : 313,017,086.70 = 87,447,107.40 : x
  2. Step 2: Convert to fraction form
    208,603,408.20/313,017,086.70 = 87,447,107.40/x
  3. Step 3: Cross multiply
    208,603,408.20x = 313,017,086.70 × 87,447,107.40
  4. Step 4: Simplify right side
    208,603,408.20x = 27,372,438,798,690,012
  5. Step 5: Solve for x
    x = 27,372,438,798,690,012/208,603,408.20
  6. Step 6: Final answer
    x = 131,217,601.07

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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.