Home / 19,321,999.85-28,982,999.78-18,377,215.85

Finding the Fourth Proportional to 19,321,999.85, 28,982,999.78 and 18,377,215.85

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Solution

The fourth proportional to 19,321,999.85, 28,982,999.78 and 18,377,215.85 is: 27,565,823.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321,999.85 : 28,982,999.78 = 18,377,215.85 : x
  2. Step 2: Convert to fraction form
    19,321,999.85/28,982,999.78 = 18,377,215.85/x
  3. Step 3: Cross multiply
    19,321,999.85x = 28,982,999.78 × 18,377,215.85
  4. Step 4: Simplify right side
    19,321,999.85x = 532,626,842,845,676.44
  5. Step 5: Solve for x
    x = 532,626,842,845,676.44/19,321,999.85
  6. Step 6: Final answer
    x = 27,565,823.78

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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.