Home / 13,765,289.40-18,996,584.40-7,885,972.44

Finding the Fourth Proportional to 13,765,289.40, 18,996,584.40 and 7,885,972.44

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Solution

The fourth proportional to 13,765,289.40, 18,996,584.40 and 7,885,972.44 is: 10,882,919.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765,289.40 : 18,996,584.40 = 7,885,972.44 : x
  2. Step 2: Convert to fraction form
    13,765,289.40/18,996,584.40 = 7,885,972.44/x
  3. Step 3: Cross multiply
    13,765,289.40x = 18,996,584.40 × 7,885,972.44
  4. Step 4: Simplify right side
    13,765,289.40x = 149,806,541,032,533.94
  5. Step 5: Solve for x
    x = 149,806,541,032,533.94/13,765,289.40
  6. Step 6: Final answer
    x = 10,882,919.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.