Home / 427,436,400,440.58-641,263,125,009.42-197,869,239,556.76

Finding the Fourth Proportional to 427,436,400,440.58, 641,263,125,009.42 and 197,869,239,556.76

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Solution

The fourth proportional to 427,436,400,440.58, 641,263,125,009.42 and 197,869,239,556.76 is: 296,854,097,523.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,436,400,440.58 : 641,263,125,009.42 = 197,869,239,556.76 : x
  2. Step 2: Convert to fraction form
    427,436,400,440.58/641,263,125,009.42 = 197,869,239,556.76/x
  3. Step 3: Cross multiply
    427,436,400,440.58x = 641,263,125,009.42 × 197,869,239,556.76
  4. Step 4: Simplify right side
    427,436,400,440.58x = 126,886,246,901,405,479,600,128
  5. Step 5: Solve for x
    x = 126,886,246,901,405,479,600,128/427,436,400,440.58
  6. Step 6: Final answer
    x = 296,854,097,523.32

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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.