Home / 7,638,195.33-11,462,765.40-2,780,491.68

Finding the Fourth Proportional to 7,638,195.33, 11,462,765.40 and 2,780,491.68

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Solution

The fourth proportional to 7,638,195.33, 11,462,765.40 and 2,780,491.68 is: 4,172,729.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638,195.33 : 11,462,765.40 = 2,780,491.68 : x
  2. Step 2: Convert to fraction form
    7,638,195.33/11,462,765.40 = 2,780,491.68/x
  3. Step 3: Cross multiply
    7,638,195.33x = 11,462,765.40 × 2,780,491.68
  4. Step 4: Simplify right side
    7,638,195.33x = 31,872,123,824,491.88
  5. Step 5: Solve for x
    x = 31,872,123,824,491.88/7,638,195.33
  6. Step 6: Final answer
    x = 4,172,729.61

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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.