Home / 7,821,786.10-11,732,679.15-2,142,001.30

Finding the Fourth Proportional to 7,821,786.10, 11,732,679.15 and 2,142,001.30

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Solution

The fourth proportional to 7,821,786.10, 11,732,679.15 and 2,142,001.30 is: 3,213,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821,786.10 : 11,732,679.15 = 2,142,001.30 : x
  2. Step 2: Convert to fraction form
    7,821,786.10/11,732,679.15 = 2,142,001.30/x
  3. Step 3: Cross multiply
    7,821,786.10x = 11,732,679.15 × 2,142,001.30
  4. Step 4: Simplify right side
    7,821,786.10x = 25,131,413,991,782.89
  5. Step 5: Solve for x
    x = 25,131,413,991,782.89/7,821,786.10
  6. Step 6: Final answer
    x = 3,213,001.95

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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.