Home / 12,453,037.40-18,679,556.10-8,198,010.20

Finding the Fourth Proportional to 12,453,037.40, 18,679,556.10 and 8,198,010.20

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Solution

The fourth proportional to 12,453,037.40, 18,679,556.10 and 8,198,010.20 is: 12,297,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453,037.40 : 18,679,556.10 = 8,198,010.20 : x
  2. Step 2: Convert to fraction form
    12,453,037.40/18,679,556.10 = 8,198,010.20/x
  3. Step 3: Cross multiply
    12,453,037.40x = 18,679,556.10 × 8,198,010.20
  4. Step 4: Simplify right side
    12,453,037.40x = 153,135,191,439,272.25
  5. Step 5: Solve for x
    x = 153,135,191,439,272.25/12,453,037.40
  6. Step 6: Final answer
    x = 12,297,015.30

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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.