Home / 140,394,491.68-210,682,671.36-75,742,922.56

Finding the Fourth Proportional to 140,394,491.68, 210,682,671.36 and 75,742,922.56

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Solution

The fourth proportional to 140,394,491.68, 210,682,671.36 and 75,742,922.56 is: 113,663,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,394,491.68 : 210,682,671.36 = 75,742,922.56 : x
  2. Step 2: Convert to fraction form
    140,394,491.68/210,682,671.36 = 75,742,922.56/x
  3. Step 3: Cross multiply
    140,394,491.68x = 210,682,671.36 × 75,742,922.56
  4. Step 4: Simplify right side
    140,394,491.68x = 15,957,721,261,554,412
  5. Step 5: Solve for x
    x = 15,957,721,261,554,412/140,394,491.68
  6. Step 6: Final answer
    x = 113,663,442.71

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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.