Home / 20,188,418.80-30,282,628.20-11,685,362.80

Finding the Fourth Proportional to 20,188,418.80, 30,282,628.20 and 11,685,362.80

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Solution

The fourth proportional to 20,188,418.80, 30,282,628.20 and 11,685,362.80 is: 17,528,044.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,418.80 : 30,282,628.20 = 11,685,362.80 : x
  2. Step 2: Convert to fraction form
    20,188,418.80/30,282,628.20 = 11,685,362.80/x
  3. Step 3: Cross multiply
    20,188,418.80x = 30,282,628.20 × 11,685,362.80
  4. Step 4: Simplify right side
    20,188,418.80x = 353,863,497,054,511
  5. Step 5: Solve for x
    x = 353,863,497,054,511/20,188,418.80
  6. Step 6: Final answer
    x = 17,528,044.20

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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.