Home / 18,881,969.70-28,322,954.55-6,111,639.30

Finding the Fourth Proportional to 18,881,969.70, 28,322,954.55 and 6,111,639.30

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Solution

The fourth proportional to 18,881,969.70, 28,322,954.55 and 6,111,639.30 is: 9,167,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881,969.70 : 28,322,954.55 = 6,111,639.30 : x
  2. Step 2: Convert to fraction form
    18,881,969.70/28,322,954.55 = 6,111,639.30/x
  3. Step 3: Cross multiply
    18,881,969.70x = 28,322,954.55 × 6,111,639.30
  4. Step 4: Simplify right side
    18,881,969.70x = 173,099,682,119,893.81
  5. Step 5: Solve for x
    x = 173,099,682,119,893.81/18,881,969.70
  6. Step 6: Final answer
    x = 9,167,458.95

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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.