Home / 20,142,121.58-30,219,078.04-6,494,993.50

Finding the Fourth Proportional to 20,142,121.58, 30,219,078.04 and 6,494,993.50

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Solution

The fourth proportional to 20,142,121.58, 30,219,078.04 and 6,494,993.50 is: 9,744,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,121.58 : 30,219,078.04 = 6,494,993.50 : x
  2. Step 2: Convert to fraction form
    20,142,121.58/30,219,078.04 = 6,494,993.50/x
  3. Step 3: Cross multiply
    20,142,121.58x = 30,219,078.04 × 6,494,993.50
  4. Step 4: Simplify right side
    20,142,121.58x = 196,272,715,445,792.72
  5. Step 5: Solve for x
    x = 196,272,715,445,792.72/20,142,121.58
  6. Step 6: Final answer
    x = 9,744,391.36

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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.