Home / 21,246,739.44-29,322,771.48-12,991,639.92

Finding the Fourth Proportional to 21,246,739.44, 29,322,771.48 and 12,991,639.92

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Solution

The fourth proportional to 21,246,739.44, 29,322,771.48 and 12,991,639.92 is: 17,929,851.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246,739.44 : 29,322,771.48 = 12,991,639.92 : x
  2. Step 2: Convert to fraction form
    21,246,739.44/29,322,771.48 = 12,991,639.92/x
  3. Step 3: Cross multiply
    21,246,739.44x = 29,322,771.48 × 12,991,639.92
  4. Step 4: Simplify right side
    21,246,739.44x = 380,950,888,524,605.50
  5. Step 5: Solve for x
    x = 380,950,888,524,605.50/21,246,739.44
  6. Step 6: Final answer
    x = 17,929,851.76

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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.