Home / 20,572,367.85-30,864,982.77-12,383,977.41

Finding the Fourth Proportional to 20,572,367.85, 30,864,982.77 and 12,383,977.41

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Solution

The fourth proportional to 20,572,367.85, 30,864,982.77 and 12,383,977.41 is: 18,579,837.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572,367.85 : 30,864,982.77 = 12,383,977.41 : x
  2. Step 2: Convert to fraction form
    20,572,367.85/30,864,982.77 = 12,383,977.41/x
  3. Step 3: Cross multiply
    20,572,367.85x = 30,864,982.77 × 12,383,977.41
  4. Step 4: Simplify right side
    20,572,367.85x = 382,231,249,383,719.25
  5. Step 5: Solve for x
    x = 382,231,249,383,719.25/20,572,367.85
  6. Step 6: Final answer
    x = 18,579,837.39

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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.