Home / 13,181,698.80-19,784,212.20-7,783,599.60

Finding the Fourth Proportional to 13,181,698.80, 19,784,212.20 and 7,783,599.60

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Solution

The fourth proportional to 13,181,698.80, 19,784,212.20 and 7,783,599.60 is: 11,682,286.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181,698.80 : 19,784,212.20 = 7,783,599.60 : x
  2. Step 2: Convert to fraction form
    13,181,698.80/19,784,212.20 = 7,783,599.60/x
  3. Step 3: Cross multiply
    13,181,698.80x = 19,784,212.20 × 7,783,599.60
  4. Step 4: Simplify right side
    13,181,698.80x = 153,992,386,166,235.09
  5. Step 5: Solve for x
    x = 153,992,386,166,235.09/13,181,698.80
  6. Step 6: Final answer
    x = 11,682,286.82

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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.