Home / 12,621,836.40-18,945,196.20-6,239,295.60

Finding the Fourth Proportional to 12,621,836.40, 18,945,196.20 and 6,239,295.60

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Solution

The fourth proportional to 12,621,836.40, 18,945,196.20 and 6,239,295.60 is: 9,365,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621,836.40 : 18,945,196.20 = 6,239,295.60 : x
  2. Step 2: Convert to fraction form
    12,621,836.40/18,945,196.20 = 6,239,295.60/x
  3. Step 3: Cross multiply
    12,621,836.40x = 18,945,196.20 × 6,239,295.60
  4. Step 4: Simplify right side
    12,621,836.40x = 118,204,679,291,796.70
  5. Step 5: Solve for x
    x = 118,204,679,291,796.70/12,621,836.40
  6. Step 6: Final answer
    x = 9,365,093.60

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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.