Home / 82,236,889.86-123,355,626.93-20,826,031.74

Finding the Fourth Proportional to 82,236,889.86, 123,355,626.93 and 20,826,031.74

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Solution

The fourth proportional to 82,236,889.86, 123,355,626.93 and 20,826,031.74 is: 31,239,121.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,236,889.86 : 123,355,626.93 = 20,826,031.74 : x
  2. Step 2: Convert to fraction form
    82,236,889.86/123,355,626.93 = 20,826,031.74/x
  3. Step 3: Cross multiply
    82,236,889.86x = 123,355,626.93 × 20,826,031.74
  4. Step 4: Simplify right side
    82,236,889.86x = 2,569,008,201,751,778.50
  5. Step 5: Solve for x
    x = 2,569,008,201,751,778.50/82,236,889.86
  6. Step 6: Final answer
    x = 31,239,121.59

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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.