Home / 12,775,981.20-19,165,721.40-4,255,429.20

Finding the Fourth Proportional to 12,775,981.20, 19,165,721.40 and 4,255,429.20

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Solution

The fourth proportional to 12,775,981.20, 19,165,721.40 and 4,255,429.20 is: 6,383,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775,981.20 : 19,165,721.40 = 4,255,429.20 : x
  2. Step 2: Convert to fraction form
    12,775,981.20/19,165,721.40 = 4,255,429.20/x
  3. Step 3: Cross multiply
    12,775,981.20x = 19,165,721.40 × 4,255,429.20
  4. Step 4: Simplify right side
    12,775,981.20x = 81,558,370,484,624.88
  5. Step 5: Solve for x
    x = 81,558,370,484,624.88/12,775,981.20
  6. Step 6: Final answer
    x = 6,383,726.56

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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.