Home / 72,589,421.20-108,915,624.60-36,687,629.20

Finding the Fourth Proportional to 72,589,421.20, 108,915,624.60 and 36,687,629.20

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Solution

The fourth proportional to 72,589,421.20, 108,915,624.60 and 36,687,629.20 is: 55,047,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,589,421.20 : 108,915,624.60 = 36,687,629.20 : x
  2. Step 2: Convert to fraction form
    72,589,421.20/108,915,624.60 = 36,687,629.20/x
  3. Step 3: Cross multiply
    72,589,421.20x = 108,915,624.60 × 36,687,629.20
  4. Step 4: Simplify right side
    72,589,421.20x = 3,995,856,049,411,198.50
  5. Step 5: Solve for x
    x = 3,995,856,049,411,198.50/72,589,421.20
  6. Step 6: Final answer
    x = 55,047,360.67

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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.