Home / 21,126,205.68-31,704,420.36-9,004,190.64

Finding the Fourth Proportional to 21,126,205.68, 31,704,420.36 and 9,004,190.64

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Solution

The fourth proportional to 21,126,205.68, 31,704,420.36 and 9,004,190.64 is: 13,512,726.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126,205.68 : 31,704,420.36 = 9,004,190.64 : x
  2. Step 2: Convert to fraction form
    21,126,205.68/31,704,420.36 = 9,004,190.64/x
  3. Step 3: Cross multiply
    21,126,205.68x = 31,704,420.36 × 9,004,190.64
  4. Step 4: Simplify right side
    21,126,205.68x = 285,472,645,052,137.44
  5. Step 5: Solve for x
    x = 285,472,645,052,137.44/21,126,205.68
  6. Step 6: Final answer
    x = 13,512,726.77

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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.