Home / 13,436,939,280.30-20,155,408,920.45-12,211,491,446.70

Finding the Fourth Proportional to 13,436,939,280.30, 20,155,408,920.45 and 12,211,491,446.70

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Solution

The fourth proportional to 13,436,939,280.30, 20,155,408,920.45 and 12,211,491,446.70 is: 18,317,237,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436,939,280.30 : 20,155,408,920.45 = 12,211,491,446.70 : x
  2. Step 2: Convert to fraction form
    13,436,939,280.30/20,155,408,920.45 = 12,211,491,446.70/x
  3. Step 3: Cross multiply
    13,436,939,280.30x = 20,155,408,920.45 × 12,211,491,446.70
  4. Step 4: Simplify right side
    13,436,939,280.30x = 246,127,603,636,816,084,992
  5. Step 5: Solve for x
    x = 246,127,603,636,816,084,992/13,436,939,280.30
  6. Step 6: Final answer
    x = 18,317,237,170.05

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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.