Home / 13,923,780.15-20,885,641.51-7,855,757.28

Finding the Fourth Proportional to 13,923,780.15, 20,885,641.51 and 7,855,757.28

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Solution

The fourth proportional to 13,923,780.15, 20,885,641.51 and 7,855,757.28 is: 11,783,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923,780.15 : 20,885,641.51 = 7,855,757.28 : x
  2. Step 2: Convert to fraction form
    13,923,780.15/20,885,641.51 = 7,855,757.28/x
  3. Step 3: Cross multiply
    13,923,780.15x = 20,885,641.51 × 7,855,757.28
  4. Step 4: Simplify right side
    13,923,780.15x = 164,072,530,413,064
  5. Step 5: Solve for x
    x = 164,072,530,413,064/13,923,780.15
  6. Step 6: Final answer
    x = 11,783,619.73

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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.