Home / 18,926,922.40-28,380,015.60-9,321,177.76

Finding the Fourth Proportional to 18,926,922.40, 28,380,015.60 and 9,321,177.76

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Solution

The fourth proportional to 18,926,922.40, 28,380,015.60 and 9,321,177.76 is: 13,976,660.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926,922.40 : 28,380,015.60 = 9,321,177.76 : x
  2. Step 2: Convert to fraction form
    18,926,922.40/28,380,015.60 = 9,321,177.76/x
  3. Step 3: Cross multiply
    18,926,922.40x = 28,380,015.60 × 9,321,177.76
  4. Step 4: Simplify right side
    18,926,922.40x = 264,535,170,239,173.06
  5. Step 5: Solve for x
    x = 264,535,170,239,173.06/18,926,922.40
  6. Step 6: Final answer
    x = 13,976,660.58

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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.