Home / 20,373,865.14-30,509,690.94-12,171,448.74

Finding the Fourth Proportional to 20,373,865.14, 30,509,690.94 and 12,171,448.74

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Solution

The fourth proportional to 20,373,865.14, 30,509,690.94 and 12,171,448.74 is: 18,226,641.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,865.14 : 30,509,690.94 = 12,171,448.74 : x
  2. Step 2: Convert to fraction form
    20,373,865.14/30,509,690.94 = 12,171,448.74/x
  3. Step 3: Cross multiply
    20,373,865.14x = 30,509,690.94 × 12,171,448.74
  4. Step 4: Simplify right side
    20,373,865.14x = 371,347,139,349,452.44
  5. Step 5: Solve for x
    x = 371,347,139,349,452.44/20,373,865.14
  6. Step 6: Final answer
    x = 18,226,641.67

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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.