Home / 21,143,314.24-31,682,687.64-15,725,765.32

Finding the Fourth Proportional to 21,143,314.24, 31,682,687.64 and 15,725,765.32

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Solution

The fourth proportional to 21,143,314.24, 31,682,687.64 and 15,725,765.32 is: 23,564,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143,314.24 : 31,682,687.64 = 15,725,765.32 : x
  2. Step 2: Convert to fraction form
    21,143,314.24/31,682,687.64 = 15,725,765.32/x
  3. Step 3: Cross multiply
    21,143,314.24x = 31,682,687.64 × 15,725,765.32
  4. Step 4: Simplify right side
    21,143,314.24x = 498,234,510,533,504.69
  5. Step 5: Solve for x
    x = 498,234,510,533,504.69/21,143,314.24
  6. Step 6: Final answer
    x = 23,564,636.31

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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.