Home / 20,334,686.37-28,051,491-12,984,791.73

Finding the Fourth Proportional to 20,334,686.37, 28,051,491 and 12,984,791.73

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Solution

The fourth proportional to 20,334,686.37, 28,051,491 and 12,984,791.73 is: 17,912,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,686.37 : 28,051,491 = 12,984,791.73 : x
  2. Step 2: Convert to fraction form
    20,334,686.37/28,051,491 = 12,984,791.73/x
  3. Step 3: Cross multiply
    20,334,686.37x = 28,051,491 × 12,984,791.73
  4. Step 4: Simplify right side
    20,334,686.37x = 364,242,768,350,969.44
  5. Step 5: Solve for x
    x = 364,242,768,350,969.44/20,334,686.37
  6. Step 6: Final answer
    x = 17,912,386.83

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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.