Home / 18,742,238.40-28,113,357.60-11,177,745.60

Finding the Fourth Proportional to 18,742,238.40, 28,113,357.60 and 11,177,745.60

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Solution

The fourth proportional to 18,742,238.40, 28,113,357.60 and 11,177,745.60 is: 16,766,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742,238.40 : 28,113,357.60 = 11,177,745.60 : x
  2. Step 2: Convert to fraction form
    18,742,238.40/28,113,357.60 = 11,177,745.60/x
  3. Step 3: Cross multiply
    18,742,238.40x = 28,113,357.60 × 11,177,745.60
  4. Step 4: Simplify right side
    18,742,238.40x = 314,243,959,214,626.56
  5. Step 5: Solve for x
    x = 314,243,959,214,626.56/18,742,238.40
  6. Step 6: Final answer
    x = 16,766,618.40

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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.