Home / 13,480,919.10-20,221,378.65-11,328,583.05

Finding the Fourth Proportional to 13,480,919.10, 20,221,378.65 and 11,328,583.05

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Solution

The fourth proportional to 13,480,919.10, 20,221,378.65 and 11,328,583.05 is: 16,992,874.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,919.10 : 20,221,378.65 = 11,328,583.05 : x
  2. Step 2: Convert to fraction form
    13,480,919.10/20,221,378.65 = 11,328,583.05/x
  3. Step 3: Cross multiply
    13,480,919.10x = 20,221,378.65 × 11,328,583.05
  4. Step 4: Simplify right side
    13,480,919.10x = 229,079,567,422,021.88
  5. Step 5: Solve for x
    x = 229,079,567,422,021.88/13,480,919.10
  6. Step 6: Final answer
    x = 16,992,874.58

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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.