Home / 20,422,454.78-28,183,987.40-11,484,378.52

Finding the Fourth Proportional to 20,422,454.78, 28,183,987.40 and 11,484,378.52

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Solution

The fourth proportional to 20,422,454.78, 28,183,987.40 and 11,484,378.52 is: 15,849,004.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422,454.78 : 28,183,987.40 = 11,484,378.52 : x
  2. Step 2: Convert to fraction form
    20,422,454.78/28,183,987.40 = 11,484,378.52/x
  3. Step 3: Cross multiply
    20,422,454.78x = 28,183,987.40 × 11,484,378.52
  4. Step 4: Simplify right side
    20,422,454.78x = 323,675,579,504,510.62
  5. Step 5: Solve for x
    x = 323,675,579,504,510.62/20,422,454.78
  6. Step 6: Final answer
    x = 15,849,004.59

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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.