Home / 12,618,917.80-18,928,376.70-8,083,954.60

Finding the Fourth Proportional to 12,618,917.80, 18,928,376.70 and 8,083,954.60

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Solution

The fourth proportional to 12,618,917.80, 18,928,376.70 and 8,083,954.60 is: 12,125,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618,917.80 : 18,928,376.70 = 8,083,954.60 : x
  2. Step 2: Convert to fraction form
    12,618,917.80/18,928,376.70 = 8,083,954.60/x
  3. Step 3: Cross multiply
    12,618,917.80x = 18,928,376.70 × 8,083,954.60
  4. Step 4: Simplify right side
    12,618,917.80x = 153,016,137,894,497.81
  5. Step 5: Solve for x
    x = 153,016,137,894,497.81/12,618,917.80
  6. Step 6: Final answer
    x = 12,125,931.90

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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.