Home / 20,213,426.30-30,321,451.65-10,647,488.30

Finding the Fourth Proportional to 20,213,426.30, 30,321,451.65 and 10,647,488.30

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Solution

The fourth proportional to 20,213,426.30, 30,321,451.65 and 10,647,488.30 is: 15,971,923.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,426.30 : 30,321,451.65 = 10,647,488.30 : x
  2. Step 2: Convert to fraction form
    20,213,426.30/30,321,451.65 = 10,647,488.30/x
  3. Step 3: Cross multiply
    20,213,426.30x = 30,321,451.65 × 10,647,488.30
  4. Step 4: Simplify right side
    20,213,426.30x = 322,847,301,682,390.69
  5. Step 5: Solve for x
    x = 322,847,301,682,390.69/20,213,426.30
  6. Step 6: Final answer
    x = 15,971,923.66

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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.