Home / 12,145,309,850.72-18,220,449,529.03-4,176,443,138.81

Finding the Fourth Proportional to 12,145,309,850.72, 18,220,449,529.03 and 4,176,443,138.81

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Solution

The fourth proportional to 12,145,309,850.72, 18,220,449,529.03 and 4,176,443,138.81 is: 6,265,519,147.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,309,850.72 : 18,220,449,529.03 = 4,176,443,138.81 : x
  2. Step 2: Convert to fraction form
    12,145,309,850.72/18,220,449,529.03 = 4,176,443,138.81/x
  3. Step 3: Cross multiply
    12,145,309,850.72x = 18,220,449,529.03 × 4,176,443,138.81
  4. Step 4: Simplify right side
    12,145,309,850.72x = 76,096,671,421,551,230,976
  5. Step 5: Solve for x
    x = 76,096,671,421,551,230,976/12,145,309,850.72
  6. Step 6: Final answer
    x = 6,265,519,147.46

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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.