Home / 28,196,155.22-38,910,694.20-15,973,012.22

Finding the Fourth Proportional to 28,196,155.22, 38,910,694.20 and 15,973,012.22

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Solution

The fourth proportional to 28,196,155.22, 38,910,694.20 and 15,973,012.22 is: 22,042,756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,196,155.22 : 38,910,694.20 = 15,973,012.22 : x
  2. Step 2: Convert to fraction form
    28,196,155.22/38,910,694.20 = 15,973,012.22/x
  3. Step 3: Cross multiply
    28,196,155.22x = 38,910,694.20 × 15,973,012.22
  4. Step 4: Simplify right side
    28,196,155.22x = 621,520,993,945,283.25
  5. Step 5: Solve for x
    x = 621,520,993,945,283.25/28,196,155.22
  6. Step 6: Final answer
    x = 22,042,756.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.