Home / 20,885,800.52-31,335,114.84-9,969,919.35

Finding the Fourth Proportional to 20,885,800.52, 31,335,114.84 and 9,969,919.35

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Solution

The fourth proportional to 20,885,800.52, 31,335,114.84 and 9,969,919.35 is: 14,957,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,800.52 : 31,335,114.84 = 9,969,919.35 : x
  2. Step 2: Convert to fraction form
    20,885,800.52/31,335,114.84 = 9,969,919.35/x
  3. Step 3: Cross multiply
    20,885,800.52x = 31,335,114.84 × 9,969,919.35
  4. Step 4: Simplify right side
    20,885,800.52x = 312,408,567,777,788.12
  5. Step 5: Solve for x
    x = 312,408,567,777,788.12/20,885,800.52
  6. Step 6: Final answer
    x = 14,957,940.81

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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.