Home / 12,237,747.20-18,363,619.20-8,453,945.60

Finding the Fourth Proportional to 12,237,747.20, 18,363,619.20 and 8,453,945.60

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Solution

The fourth proportional to 12,237,747.20, 18,363,619.20 and 8,453,945.60 is: 12,685,752.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237,747.20 : 18,363,619.20 = 8,453,945.60 : x
  2. Step 2: Convert to fraction form
    12,237,747.20/18,363,619.20 = 8,453,945.60/x
  3. Step 3: Cross multiply
    12,237,747.20x = 18,363,619.20 × 8,453,945.60
  4. Step 4: Simplify right side
    12,237,747.20x = 155,245,037,735,915.50
  5. Step 5: Solve for x
    x = 155,245,037,735,915.50/12,237,747.20
  6. Step 6: Final answer
    x = 12,685,752.96

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Double scale
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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.