Home / 18,345,408.40-27,518,112.60-12,298,790.80

Finding the Fourth Proportional to 18,345,408.40, 27,518,112.60 and 12,298,790.80

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Solution

The fourth proportional to 18,345,408.40, 27,518,112.60 and 12,298,790.80 is: 18,448,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345,408.40 : 27,518,112.60 = 12,298,790.80 : x
  2. Step 2: Convert to fraction form
    18,345,408.40/27,518,112.60 = 12,298,790.80/x
  3. Step 3: Cross multiply
    18,345,408.40x = 27,518,112.60 × 12,298,790.80
  4. Step 4: Simplify right side
    18,345,408.40x = 338,439,510,078,244.12
  5. Step 5: Solve for x
    x = 338,439,510,078,244.12/18,345,408.40
  6. Step 6: Final answer
    x = 18,448,186.20

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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.