Home / 20,763,722.80-31,145,584.20-11,078,210.58

Finding the Fourth Proportional to 20,763,722.80, 31,145,584.20 and 11,078,210.58

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Solution

The fourth proportional to 20,763,722.80, 31,145,584.20 and 11,078,210.58 is: 16,617,315.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,722.80 : 31,145,584.20 = 11,078,210.58 : x
  2. Step 2: Convert to fraction form
    20,763,722.80/31,145,584.20 = 11,078,210.58/x
  3. Step 3: Cross multiply
    20,763,722.80x = 31,145,584.20 × 11,078,210.58
  4. Step 4: Simplify right side
    20,763,722.80x = 345,037,340,404,720.81
  5. Step 5: Solve for x
    x = 345,037,340,404,720.81/20,763,722.80
  6. Step 6: Final answer
    x = 16,617,315.87

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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.