Home / 25,549,778.31-38,324,669.14-20,408,135.09

Finding the Fourth Proportional to 25,549,778.31, 38,324,669.14 and 20,408,135.09

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Solution

The fourth proportional to 25,549,778.31, 38,324,669.14 and 20,408,135.09 is: 30,612,203.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,549,778.31 : 38,324,669.14 = 20,408,135.09 : x
  2. Step 2: Convert to fraction form
    25,549,778.31/38,324,669.14 = 20,408,135.09/x
  3. Step 3: Cross multiply
    25,549,778.31x = 38,324,669.14 × 20,408,135.09
  4. Step 4: Simplify right side
    25,549,778.31x = 782,135,025,088,674.12
  5. Step 5: Solve for x
    x = 782,135,025,088,674.12/25,549,778.31
  6. Step 6: Final answer
    x = 30,612,203.97

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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.