Home / 18,890,899.89-28,338,372.81-5,244,103.32

Finding the Fourth Proportional to 18,890,899.89, 28,338,372.81 and 5,244,103.32

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Solution

The fourth proportional to 18,890,899.89, 28,338,372.81 and 5,244,103.32 is: 7,866,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890,899.89 : 28,338,372.81 = 5,244,103.32 : x
  2. Step 2: Convert to fraction form
    18,890,899.89/28,338,372.81 = 5,244,103.32/x
  3. Step 3: Cross multiply
    18,890,899.89x = 28,338,372.81 × 5,244,103.32
  4. Step 4: Simplify right side
    18,890,899.89x = 148,609,354,936,318.72
  5. Step 5: Solve for x
    x = 148,609,354,936,318.72/18,890,899.89
  6. Step 6: Final answer
    x = 7,866,716.56

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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.