Home / 20,932,485.70-31,375,400.55-8,148,741.70

Finding the Fourth Proportional to 20,932,485.70, 31,375,400.55 and 8,148,741.70

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Solution

The fourth proportional to 20,932,485.70, 31,375,400.55 and 8,148,741.70 is: 12,214,031.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932,485.70 : 31,375,400.55 = 8,148,741.70 : x
  2. Step 2: Convert to fraction form
    20,932,485.70/31,375,400.55 = 8,148,741.70/x
  3. Step 3: Cross multiply
    20,932,485.70x = 31,375,400.55 × 8,148,741.70
  4. Step 4: Simplify right side
    20,932,485.70x = 255,670,034,815,987.94
  5. Step 5: Solve for x
    x = 255,670,034,815,987.94/20,932,485.70
  6. Step 6: Final answer
    x = 12,214,031.27

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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.