Home / 18,775,021.60-25,956,913.44-13,872,511.36

Finding the Fourth Proportional to 18,775,021.60, 25,956,913.44 and 13,872,511.36

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Solution

The fourth proportional to 18,775,021.60, 25,956,913.44 and 13,872,511.36 is: 19,179,076.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775,021.60 : 25,956,913.44 = 13,872,511.36 : x
  2. Step 2: Convert to fraction form
    18,775,021.60/25,956,913.44 = 13,872,511.36/x
  3. Step 3: Cross multiply
    18,775,021.60x = 25,956,913.44 × 13,872,511.36
  4. Step 4: Simplify right side
    18,775,021.60x = 360,087,576,566,936.69
  5. Step 5: Solve for x
    x = 360,087,576,566,936.69/18,775,021.60
  6. Step 6: Final answer
    x = 19,179,076.55

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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.