Home / 31,498,271.47-43,467,800.41-18,275,321.75

Finding the Fourth Proportional to 31,498,271.47, 43,467,800.41 and 18,275,321.75

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Solution

The fourth proportional to 31,498,271.47, 43,467,800.41 and 18,275,321.75 is: 25,220,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,498,271.47 : 43,467,800.41 = 18,275,321.75 : x
  2. Step 2: Convert to fraction form
    31,498,271.47/43,467,800.41 = 18,275,321.75/x
  3. Step 3: Cross multiply
    31,498,271.47x = 43,467,800.41 × 18,275,321.75
  4. Step 4: Simplify right side
    31,498,271.47x = 794,388,037,994,504.62
  5. Step 5: Solve for x
    x = 794,388,037,994,504.62/31,498,271.47
  6. Step 6: Final answer
    x = 25,220,051.80

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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.