Home / 12,872,046.45-19,308,069.68-6,804,433.65

Finding the Fourth Proportional to 12,872,046.45, 19,308,069.68 and 6,804,433.65

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Solution

The fourth proportional to 12,872,046.45, 19,308,069.68 and 6,804,433.65 is: 10,206,650.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,046.45 : 19,308,069.68 = 6,804,433.65 : x
  2. Step 2: Convert to fraction form
    12,872,046.45/19,308,069.68 = 6,804,433.65/x
  3. Step 3: Cross multiply
    12,872,046.45x = 19,308,069.68 × 6,804,433.65
  4. Step 4: Simplify right side
    12,872,046.45x = 131,380,479,013,114.58
  5. Step 5: Solve for x
    x = 131,380,479,013,114.58/12,872,046.45
  6. Step 6: Final answer
    x = 10,206,650.48

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Double scale
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Similar ratio
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1.5x scale

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.