Home / 255,782,020.31-383,508,071.70-100,351,536.78

Finding the Fourth Proportional to 255,782,020.31, 383,508,071.70 and 100,351,536.78

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Solution

The fourth proportional to 255,782,020.31, 383,508,071.70 and 100,351,536.78 is: 150,462,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,782,020.31 : 383,508,071.70 = 100,351,536.78 : x
  2. Step 2: Convert to fraction form
    255,782,020.31/383,508,071.70 = 100,351,536.78/x
  3. Step 3: Cross multiply
    255,782,020.31x = 383,508,071.70 × 100,351,536.78
  4. Step 4: Simplify right side
    255,782,020.31x = 38,485,624,362,629,424
  5. Step 5: Solve for x
    x = 38,485,624,362,629,424/255,782,020.31
  6. Step 6: Final answer
    x = 150,462,586.53

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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.