Home / 28,173,993.78-38,881,072.56-15,784,609.62

Finding the Fourth Proportional to 28,173,993.78, 38,881,072.56 and 15,784,609.62

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Solution

The fourth proportional to 28,173,993.78, 38,881,072.56 and 15,784,609.62 is: 21,783,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173,993.78 : 38,881,072.56 = 15,784,609.62 : x
  2. Step 2: Convert to fraction form
    28,173,993.78/38,881,072.56 = 15,784,609.62/x
  3. Step 3: Cross multiply
    28,173,993.78x = 38,881,072.56 × 15,784,609.62
  4. Step 4: Simplify right side
    28,173,993.78x = 613,722,551,966,494
  5. Step 5: Solve for x
    x = 613,722,551,966,494/28,173,993.78
  6. Step 6: Final answer
    x = 21,783,299.76

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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.