Home / 20,220,421.50-30,330,632.34-6,757,249.50

Finding the Fourth Proportional to 20,220,421.50, 30,330,632.34 and 6,757,249.50

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Solution

The fourth proportional to 20,220,421.50, 30,330,632.34 and 6,757,249.50 is: 10,135,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,421.50 : 30,330,632.34 = 6,757,249.50 : x
  2. Step 2: Convert to fraction form
    20,220,421.50/30,330,632.34 = 6,757,249.50/x
  3. Step 3: Cross multiply
    20,220,421.50x = 30,330,632.34 × 6,757,249.50
  4. Step 4: Simplify right side
    20,220,421.50x = 204,951,650,214,148.84
  5. Step 5: Solve for x
    x = 204,951,650,214,148.84/20,220,421.50
  6. Step 6: Final answer
    x = 10,135,874.28

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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.