Home / 13,178,972.20-19,780,268.10-11,383,882.60

Finding the Fourth Proportional to 13,178,972.20, 19,780,268.10 and 11,383,882.60

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Solution

The fourth proportional to 13,178,972.20, 19,780,268.10 and 11,383,882.60 is: 17,086,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178,972.20 : 19,780,268.10 = 11,383,882.60 : x
  2. Step 2: Convert to fraction form
    13,178,972.20/19,780,268.10 = 11,383,882.60/x
  3. Step 3: Cross multiply
    13,178,972.20x = 19,780,268.10 × 11,383,882.60
  4. Step 4: Simplify right side
    13,178,972.20x = 225,176,249,846,925.06
  5. Step 5: Solve for x
    x = 225,176,249,846,925.06/13,178,972.20
  6. Step 6: Final answer
    x = 17,086,025.10

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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.