Home / 20,238,055.81-27,928,738.61-11,070,698.65

Finding the Fourth Proportional to 20,238,055.81, 27,928,738.61 and 11,070,698.65

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Solution

The fourth proportional to 20,238,055.81, 27,928,738.61 and 11,070,698.65 is: 15,277,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238,055.81 : 27,928,738.61 = 11,070,698.65 : x
  2. Step 2: Convert to fraction form
    20,238,055.81/27,928,738.61 = 11,070,698.65/x
  3. Step 3: Cross multiply
    20,238,055.81x = 27,928,738.61 × 11,070,698.65
  4. Step 4: Simplify right side
    20,238,055.81x = 309,190,648,770,576.38
  5. Step 5: Solve for x
    x = 309,190,648,770,576.38/20,238,055.81
  6. Step 6: Final answer
    x = 15,277,685.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.