Home / 20,206,937.80-30,310,406.70-11,682,886.60

Finding the Fourth Proportional to 20,206,937.80, 30,310,406.70 and 11,682,886.60

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Solution

The fourth proportional to 20,206,937.80, 30,310,406.70 and 11,682,886.60 is: 17,524,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,937.80 : 30,310,406.70 = 11,682,886.60 : x
  2. Step 2: Convert to fraction form
    20,206,937.80/30,310,406.70 = 11,682,886.60/x
  3. Step 3: Cross multiply
    20,206,937.80x = 30,310,406.70 × 11,682,886.60
  4. Step 4: Simplify right side
    20,206,937.80x = 354,113,044,275,980.19
  5. Step 5: Solve for x
    x = 354,113,044,275,980.19/20,206,937.80
  6. Step 6: Final answer
    x = 17,524,329.90

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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.