Home / 12,826,979.20-19,240,468.80-11,669,910.40

Finding the Fourth Proportional to 12,826,979.20, 19,240,468.80 and 11,669,910.40

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Solution

The fourth proportional to 12,826,979.20, 19,240,468.80 and 11,669,910.40 is: 17,504,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826,979.20 : 19,240,468.80 = 11,669,910.40 : x
  2. Step 2: Convert to fraction form
    12,826,979.20/19,240,468.80 = 11,669,910.40/x
  3. Step 3: Cross multiply
    12,826,979.20x = 19,240,468.80 × 11,669,910.40
  4. Step 4: Simplify right side
    12,826,979.20x = 224,534,546,949,995.53
  5. Step 5: Solve for x
    x = 224,534,546,949,995.53/12,826,979.20
  6. Step 6: Final answer
    x = 17,504,865.60

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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.