Home / 20,969,197.89-28,912,732.41-14,356,992.72

Finding the Fourth Proportional to 20,969,197.89, 28,912,732.41 and 14,356,992.72

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Solution

The fourth proportional to 20,969,197.89, 28,912,732.41 and 14,356,992.72 is: 19,795,697.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969,197.89 : 28,912,732.41 = 14,356,992.72 : x
  2. Step 2: Convert to fraction form
    20,969,197.89/28,912,732.41 = 14,356,992.72/x
  3. Step 3: Cross multiply
    20,969,197.89x = 28,912,732.41 × 14,356,992.72
  4. Step 4: Simplify right side
    20,969,197.89x = 415,099,888,887,939.56
  5. Step 5: Solve for x
    x = 415,099,888,887,939.56/20,969,197.89
  6. Step 6: Final answer
    x = 19,795,697.06

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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.