Home / 670,125,920.72-1,005,189,172.68-210,099,957.44

Finding the Fourth Proportional to 670,125,920.72, 1,005,189,172.68 and 210,099,957.44

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Solution

The fourth proportional to 670,125,920.72, 1,005,189,172.68 and 210,099,957.44 is: 315,150,027.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,125,920.72 : 1,005,189,172.68 = 210,099,957.44 : x
  2. Step 2: Convert to fraction form
    670,125,920.72/1,005,189,172.68 = 210,099,957.44/x
  3. Step 3: Cross multiply
    670,125,920.72x = 1,005,189,172.68 × 210,099,957.44
  4. Step 4: Simplify right side
    670,125,920.72x = 211,190,202,399,216,800
  5. Step 5: Solve for x
    x = 211,190,202,399,216,800/670,125,920.72
  6. Step 6: Final answer
    x = 315,150,027.58

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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.