Home / 13,436,928,007.20-20,155,392,010.80-8,212,650,400.80

Finding the Fourth Proportional to 13,436,928,007.20, 20,155,392,010.80 and 8,212,650,400.80

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Solution

The fourth proportional to 13,436,928,007.20, 20,155,392,010.80 and 8,212,650,400.80 is: 12,318,975,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436,928,007.20 : 20,155,392,010.80 = 8,212,650,400.80 : x
  2. Step 2: Convert to fraction form
    13,436,928,007.20/20,155,392,010.80 = 8,212,650,400.80/x
  3. Step 3: Cross multiply
    13,436,928,007.20x = 20,155,392,010.80 × 8,212,650,400.80
  4. Step 4: Simplify right side
    13,436,928,007.20x = 165,529,188,275,777,732,608
  5. Step 5: Solve for x
    x = 165,529,188,275,777,732,608/13,436,928,007.20
  6. Step 6: Final answer
    x = 12,318,975,601.20

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1.5x scale

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.