Home / 72,621,921.20-108,806,910.60-47,049,767.60

Finding the Fourth Proportional to 72,621,921.20, 108,806,910.60 and 47,049,767.60

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Solution

The fourth proportional to 72,621,921.20, 108,806,910.60 and 47,049,767.60 is: 70,493,038.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,621,921.20 : 108,806,910.60 = 47,049,767.60 : x
  2. Step 2: Convert to fraction form
    72,621,921.20/108,806,910.60 = 47,049,767.60/x
  3. Step 3: Cross multiply
    72,621,921.20x = 108,806,910.60 × 47,049,767.60
  4. Step 4: Simplify right side
    72,621,921.20x = 5,119,339,857,003,976
  5. Step 5: Solve for x
    x = 5,119,339,857,003,976/72,621,921.20
  6. Step 6: Final answer
    x = 70,493,038.09

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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.