Home / 20,879,596.98-31,309,269.54-12,246,516.36

Finding the Fourth Proportional to 20,879,596.98, 31,309,269.54 and 12,246,516.36

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Solution

The fourth proportional to 20,879,596.98, 31,309,269.54 and 12,246,516.36 is: 18,363,835.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,879,596.98 : 31,309,269.54 = 12,246,516.36 : x
  2. Step 2: Convert to fraction form
    20,879,596.98/31,309,269.54 = 12,246,516.36/x
  3. Step 3: Cross multiply
    20,879,596.98x = 31,309,269.54 × 12,246,516.36
  4. Step 4: Simplify right side
    20,879,596.98x = 383,429,481,641,259.62
  5. Step 5: Solve for x
    x = 383,429,481,641,259.62/20,879,596.98
  6. Step 6: Final answer
    x = 18,363,835.38

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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.