Home / 20,847,511.61-28,771,289.64-11,557,996.73

Finding the Fourth Proportional to 20,847,511.61, 28,771,289.64 and 11,557,996.73

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Solution

The fourth proportional to 20,847,511.61, 28,771,289.64 and 11,557,996.73 is: 15,950,991.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847,511.61 : 28,771,289.64 = 11,557,996.73 : x
  2. Step 2: Convert to fraction form
    20,847,511.61/28,771,289.64 = 11,557,996.73/x
  3. Step 3: Cross multiply
    20,847,511.61x = 28,771,289.64 × 11,557,996.73
  4. Step 4: Simplify right side
    20,847,511.61x = 332,538,471,577,002.88
  5. Step 5: Solve for x
    x = 332,538,471,577,002.88/20,847,511.61
  6. Step 6: Final answer
    x = 15,950,991.07

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1.5x scale

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.