Home / 12,768,046.20-19,152,069.30-4,248,660.60

Finding the Fourth Proportional to 12,768,046.20, 19,152,069.30 and 4,248,660.60

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Solution

The fourth proportional to 12,768,046.20, 19,152,069.30 and 4,248,660.60 is: 6,372,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,046.20 : 19,152,069.30 = 4,248,660.60 : x
  2. Step 2: Convert to fraction form
    12,768,046.20/19,152,069.30 = 4,248,660.60/x
  3. Step 3: Cross multiply
    12,768,046.20x = 19,152,069.30 × 4,248,660.60
  4. Step 4: Simplify right side
    12,768,046.20x = 81,370,642,243,379.58
  5. Step 5: Solve for x
    x = 81,370,642,243,379.58/12,768,046.20
  6. Step 6: Final answer
    x = 6,372,990.90

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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.