Home / 12,384,512.40-18,576,768.60-5,201,201.55

Finding the Fourth Proportional to 12,384,512.40, 18,576,768.60 and 5,201,201.55

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Solution

The fourth proportional to 12,384,512.40, 18,576,768.60 and 5,201,201.55 is: 7,801,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384,512.40 : 18,576,768.60 = 5,201,201.55 : x
  2. Step 2: Convert to fraction form
    12,384,512.40/18,576,768.60 = 5,201,201.55/x
  3. Step 3: Cross multiply
    12,384,512.40x = 18,576,768.60 × 5,201,201.55
  4. Step 4: Simplify right side
    12,384,512.40x = 96,621,517,636,311.33
  5. Step 5: Solve for x
    x = 96,621,517,636,311.33/12,384,512.40
  6. Step 6: Final answer
    x = 7,801,802.33

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1.5x scale

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.