Home / 13,285,470.30-19,928,205.45-12,109,739.10

Finding the Fourth Proportional to 13,285,470.30, 19,928,205.45 and 12,109,739.10

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Solution

The fourth proportional to 13,285,470.30, 19,928,205.45 and 12,109,739.10 is: 18,164,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,470.30 : 19,928,205.45 = 12,109,739.10 : x
  2. Step 2: Convert to fraction form
    13,285,470.30/19,928,205.45 = 12,109,739.10/x
  3. Step 3: Cross multiply
    13,285,470.30x = 19,928,205.45 × 12,109,739.10
  4. Step 4: Simplify right side
    13,285,470.30x = 241,325,368,730,698.09
  5. Step 5: Solve for x
    x = 241,325,368,730,698.09/13,285,470.30
  6. Step 6: Final answer
    x = 18,164,608.65

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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.