Home / 20,577,997-28,395,588.90-11,878,972.12

Finding the Fourth Proportional to 20,577,997, 28,395,588.90 and 11,878,972.12

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Solution

The fourth proportional to 20,577,997, 28,395,588.90 and 11,878,972.12 is: 16,391,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,997 : 28,395,588.90 = 11,878,972.12 : x
  2. Step 2: Convert to fraction form
    20,577,997/28,395,588.90 = 11,878,972.12/x
  3. Step 3: Cross multiply
    20,577,997x = 28,395,588.90 × 11,878,972.12
  4. Step 4: Simplify right side
    20,577,997x = 337,310,408,874,081.44
  5. Step 5: Solve for x
    x = 337,310,408,874,081.44/20,577,997
  6. Step 6: Final answer
    x = 16,391,799.89

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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.