Home / 68,130,811.20-102,028,255.20-45,288,033.60

Finding the Fourth Proportional to 68,130,811.20, 102,028,255.20 and 45,288,033.60

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Solution

The fourth proportional to 68,130,811.20, 102,028,255.20 and 45,288,033.60 is: 67,820,402.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,130,811.20 : 102,028,255.20 = 45,288,033.60 : x
  2. Step 2: Convert to fraction form
    68,130,811.20/102,028,255.20 = 45,288,033.60/x
  3. Step 3: Cross multiply
    68,130,811.20x = 102,028,255.20 × 45,288,033.60
  4. Step 4: Simplify right side
    68,130,811.20x = 4,620,659,049,646,975
  5. Step 5: Solve for x
    x = 4,620,659,049,646,975/68,130,811.20
  6. Step 6: Final answer
    x = 67,820,402.67

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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.