Home / 25,549,778.61-38,324,669.59-20,408,135.39

Finding the Fourth Proportional to 25,549,778.61, 38,324,669.59 and 20,408,135.39

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Solution

The fourth proportional to 25,549,778.61, 38,324,669.59 and 20,408,135.39 is: 30,612,204.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,549,778.61 : 38,324,669.59 = 20,408,135.39 : x
  2. Step 2: Convert to fraction form
    25,549,778.61/38,324,669.59 = 20,408,135.39/x
  3. Step 3: Cross multiply
    25,549,778.61x = 38,324,669.59 × 20,408,135.39
  4. Step 4: Simplify right side
    25,549,778.61x = 782,135,045,769,735.88
  5. Step 5: Solve for x
    x = 782,135,045,769,735.88/25,549,778.61
  6. Step 6: Final answer
    x = 30,612,204.42

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1.5x scale

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.