Home / 12,682,867.80-19,024,301.70-8,147,904.60

Finding the Fourth Proportional to 12,682,867.80, 19,024,301.70 and 8,147,904.60

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Solution

The fourth proportional to 12,682,867.80, 19,024,301.70 and 8,147,904.60 is: 12,221,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682,867.80 : 19,024,301.70 = 8,147,904.60 : x
  2. Step 2: Convert to fraction form
    12,682,867.80/19,024,301.70 = 8,147,904.60/x
  3. Step 3: Cross multiply
    12,682,867.80x = 19,024,301.70 × 8,147,904.60
  4. Step 4: Simplify right side
    12,682,867.80x = 155,008,195,333,217.81
  5. Step 5: Solve for x
    x = 155,008,195,333,217.81/12,682,867.80
  6. Step 6: Final answer
    x = 12,221,856.90

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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.