Home / 13,383,136.80-18,468,664.50-7,581,904.80

Finding the Fourth Proportional to 13,383,136.80, 18,468,664.50 and 7,581,904.80

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Solution

The fourth proportional to 13,383,136.80, 18,468,664.50 and 7,581,904.80 is: 10,462,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383,136.80 : 18,468,664.50 = 7,581,904.80 : x
  2. Step 2: Convert to fraction form
    13,383,136.80/18,468,664.50 = 7,581,904.80/x
  3. Step 3: Cross multiply
    13,383,136.80x = 18,468,664.50 × 7,581,904.80
  4. Step 4: Simplify right side
    13,383,136.80x = 140,027,656,022,139.59
  5. Step 5: Solve for x
    x = 140,027,656,022,139.59/13,383,136.80
  6. Step 6: Final answer
    x = 10,462,992.21

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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.