Home / 21,380,129.60-32,032,869.60-18,394,145.60

Finding the Fourth Proportional to 21,380,129.60, 32,032,869.60 and 18,394,145.60

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Solution

The fourth proportional to 21,380,129.60, 32,032,869.60 and 18,394,145.60 is: 27,559,106.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380,129.60 : 32,032,869.60 = 18,394,145.60 : x
  2. Step 2: Convert to fraction form
    21,380,129.60/32,032,869.60 = 18,394,145.60/x
  3. Step 3: Cross multiply
    21,380,129.60x = 32,032,869.60 × 18,394,145.60
  4. Step 4: Simplify right side
    21,380,129.60x = 589,217,267,408,213.88
  5. Step 5: Solve for x
    x = 589,217,267,408,213.88/21,380,129.60
  6. Step 6: Final answer
    x = 27,559,106.44

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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.