Home / 12,237,742.20-18,363,611.70-8,453,940.60

Finding the Fourth Proportional to 12,237,742.20, 18,363,611.70 and 8,453,940.60

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Solution

The fourth proportional to 12,237,742.20, 18,363,611.70 and 8,453,940.60 is: 12,685,745.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237,742.20 : 18,363,611.70 = 8,453,940.60 : x
  2. Step 2: Convert to fraction form
    12,237,742.20/18,363,611.70 = 8,453,940.60/x
  3. Step 3: Cross multiply
    12,237,742.20x = 18,363,611.70 × 8,453,940.60
  4. Step 4: Simplify right side
    12,237,742.20x = 155,244,882,513,265
  5. Step 5: Solve for x
    x = 155,244,882,513,265/12,237,742.20
  6. Step 6: Final answer
    x = 12,685,745.46

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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.