Home / 18,378,528.90-27,567,793.35-12,331,911.30

Finding the Fourth Proportional to 18,378,528.90, 27,567,793.35 and 12,331,911.30

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Solution

The fourth proportional to 18,378,528.90, 27,567,793.35 and 12,331,911.30 is: 18,497,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378,528.90 : 27,567,793.35 = 12,331,911.30 : x
  2. Step 2: Convert to fraction form
    18,378,528.90/27,567,793.35 = 12,331,911.30/x
  3. Step 3: Cross multiply
    18,378,528.90x = 27,567,793.35 × 12,331,911.30
  4. Step 4: Simplify right side
    18,378,528.90x = 339,963,582,328,929.88
  5. Step 5: Solve for x
    x = 339,963,582,328,929.88/18,378,528.90
  6. Step 6: Final answer
    x = 18,497,866.95

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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.