Home / 18,619,193.90-27,928,509.80-8,376,820.85

Finding the Fourth Proportional to 18,619,193.90, 27,928,509.80 and 8,376,820.85

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Solution

The fourth proportional to 18,619,193.90, 27,928,509.80 and 8,376,820.85 is: 12,565,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619,193.90 : 27,928,509.80 = 8,376,820.85 : x
  2. Step 2: Convert to fraction form
    18,619,193.90/27,928,509.80 = 8,376,820.85/x
  3. Step 3: Cross multiply
    18,619,193.90x = 27,928,509.80 × 8,376,820.85
  4. Step 4: Simplify right side
    18,619,193.90x = 233,952,123,062,426.78
  5. Step 5: Solve for x
    x = 233,952,123,062,426.78/18,619,193.90
  6. Step 6: Final answer
    x = 12,565,104.83

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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.