Home / 12,013,819.80-18,018,980.10-3,493,267.80

Finding the Fourth Proportional to 12,013,819.80, 18,018,980.10 and 3,493,267.80

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Solution

The fourth proportional to 12,013,819.80, 18,018,980.10 and 3,493,267.80 is: 5,239,392.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013,819.80 : 18,018,980.10 = 3,493,267.80 : x
  2. Step 2: Convert to fraction form
    12,013,819.80/18,018,980.10 = 3,493,267.80/x
  3. Step 3: Cross multiply
    12,013,819.80x = 18,018,980.10 × 3,493,267.80
  4. Step 4: Simplify right side
    12,013,819.80x = 62,945,122,972,170.78
  5. Step 5: Solve for x
    x = 62,945,122,972,170.78/12,013,819.80
  6. Step 6: Final answer
    x = 5,239,392.97

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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.