Home / 12,519,781.56-18,786,650.10-6,762,399

Finding the Fourth Proportional to 12,519,781.56, 18,786,650.10 and 6,762,399

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Solution

The fourth proportional to 12,519,781.56, 18,786,650.10 and 6,762,399 is: 10,147,367.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519,781.56 : 18,786,650.10 = 6,762,399 : x
  2. Step 2: Convert to fraction form
    12,519,781.56/18,786,650.10 = 6,762,399/x
  3. Step 3: Cross multiply
    12,519,781.56x = 18,786,650.10 × 6,762,399
  4. Step 4: Simplify right side
    12,519,781.56x = 127,042,823,849,589.91
  5. Step 5: Solve for x
    x = 127,042,823,849,589.91/12,519,781.56
  6. Step 6: Final answer
    x = 10,147,367.45

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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.