Home / 13,631,745.71-18,811,719.81-7,751,380.33

Finding the Fourth Proportional to 13,631,745.71, 18,811,719.81 and 7,751,380.33

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Solution

The fourth proportional to 13,631,745.71, 18,811,719.81 and 7,751,380.33 is: 10,696,854.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,745.71 : 18,811,719.81 = 7,751,380.33 : x
  2. Step 2: Convert to fraction form
    13,631,745.71/18,811,719.81 = 7,751,380.33/x
  3. Step 3: Cross multiply
    13,631,745.71x = 18,811,719.81 × 7,751,380.33
  4. Step 4: Simplify right side
    13,631,745.71x = 145,816,794,908,705.34
  5. Step 5: Solve for x
    x = 145,816,794,908,705.34/13,631,745.71
  6. Step 6: Final answer
    x = 10,696,854.09

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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.