Home / 28,758,709.88-43,138,950.57-12,576,331.43

Finding the Fourth Proportional to 28,758,709.88, 43,138,950.57 and 12,576,331.43

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Solution

The fourth proportional to 28,758,709.88, 43,138,950.57 and 12,576,331.43 is: 18,864,884.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758,709.88 : 43,138,950.57 = 12,576,331.43 : x
  2. Step 2: Convert to fraction form
    28,758,709.88/43,138,950.57 = 12,576,331.43/x
  3. Step 3: Cross multiply
    28,758,709.88x = 43,138,950.57 × 12,576,331.43
  4. Step 4: Simplify right side
    28,758,709.88x = 542,529,739,695,012.69
  5. Step 5: Solve for x
    x = 542,529,739,695,012.69/28,758,709.88
  6. Step 6: Final answer
    x = 18,864,884.48

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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.