Home / 18,686,843.40-28,030,265.10-11,474,992.20

Finding the Fourth Proportional to 18,686,843.40, 28,030,265.10 and 11,474,992.20

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Solution

The fourth proportional to 18,686,843.40, 28,030,265.10 and 11,474,992.20 is: 17,212,488.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,843.40 : 28,030,265.10 = 11,474,992.20 : x
  2. Step 2: Convert to fraction form
    18,686,843.40/28,030,265.10 = 11,474,992.20/x
  3. Step 3: Cross multiply
    18,686,843.40x = 28,030,265.10 × 11,474,992.20
  4. Step 4: Simplify right side
    18,686,843.40x = 321,647,073,386,432.19
  5. Step 5: Solve for x
    x = 321,647,073,386,432.19/18,686,843.40
  6. Step 6: Final answer
    x = 17,212,488.30

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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.