Home / 12,269,219.80-18,403,829.70-8,442,844.60

Finding the Fourth Proportional to 12,269,219.80, 18,403,829.70 and 8,442,844.60

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Solution

The fourth proportional to 12,269,219.80, 18,403,829.70 and 8,442,844.60 is: 12,664,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269,219.80 : 18,403,829.70 = 8,442,844.60 : x
  2. Step 2: Convert to fraction form
    12,269,219.80/18,403,829.70 = 8,442,844.60/x
  3. Step 3: Cross multiply
    12,269,219.80x = 18,403,829.70 × 8,442,844.60
  4. Step 4: Simplify right side
    12,269,219.80x = 155,380,674,201,964.59
  5. Step 5: Solve for x
    x = 155,380,674,201,964.59/12,269,219.80
  6. Step 6: Final answer
    x = 12,664,266.90

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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.