Home / 478,262,109,629.68-717,903,682,014.05-206,120,661,362.64

Finding the Fourth Proportional to 478,262,109,629.68, 717,903,682,014.05 and 206,120,661,362.64

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Solution

The fourth proportional to 478,262,109,629.68, 717,903,682,014.05 and 206,120,661,362.64 is: 309,401,014,113.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,262,109,629.68 : 717,903,682,014.05 = 206,120,661,362.64 : x
  2. Step 2: Convert to fraction form
    478,262,109,629.68/717,903,682,014.05 = 206,120,661,362.64/x
  3. Step 3: Cross multiply
    478,262,109,629.68x = 717,903,682,014.05 × 206,120,661,362.64
  4. Step 4: Simplify right side
    478,262,109,629.68x = 147,974,781,731,410,416,762,880
  5. Step 5: Solve for x
    x = 147,974,781,731,410,416,762,880/478,262,109,629.68
  6. Step 6: Final answer
    x = 309,401,014,113.34

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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.