Home / 28,225,185.45-38,878,181.81-19,951,022.75

Finding the Fourth Proportional to 28,225,185.45, 38,878,181.81 and 19,951,022.75

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Solution

The fourth proportional to 28,225,185.45, 38,878,181.81 and 19,951,022.75 is: 27,481,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225,185.45 : 38,878,181.81 = 19,951,022.75 : x
  2. Step 2: Convert to fraction form
    28,225,185.45/38,878,181.81 = 19,951,022.75/x
  3. Step 3: Cross multiply
    28,225,185.45x = 38,878,181.81 × 19,951,022.75
  4. Step 4: Simplify right side
    28,225,185.45x = 775,659,489,475,800.25
  5. Step 5: Solve for x
    x = 775,659,489,475,800.25/28,225,185.45
  6. Step 6: Final answer
    x = 27,481,112.24

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1.5x scale

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.