Home / 20,219,883.20-30,329,824.80-12,567,132.80

Finding the Fourth Proportional to 20,219,883.20, 30,329,824.80 and 12,567,132.80

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Solution

The fourth proportional to 20,219,883.20, 30,329,824.80 and 12,567,132.80 is: 18,850,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,883.20 : 30,329,824.80 = 12,567,132.80 : x
  2. Step 2: Convert to fraction form
    20,219,883.20/30,329,824.80 = 12,567,132.80/x
  3. Step 3: Cross multiply
    20,219,883.20x = 30,329,824.80 × 12,567,132.80
  4. Step 4: Simplify right side
    20,219,883.20x = 381,158,936,062,333.50
  5. Step 5: Solve for x
    x = 381,158,936,062,333.50/20,219,883.20
  6. Step 6: Final answer
    x = 18,850,699.20

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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.