Home / 10,987,789.70-16,481,684.55-8,118,008.30

Finding the Fourth Proportional to 10,987,789.70, 16,481,684.55 and 8,118,008.30

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Solution

The fourth proportional to 10,987,789.70, 16,481,684.55 and 8,118,008.30 is: 12,177,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987,789.70 : 16,481,684.55 = 8,118,008.30 : x
  2. Step 2: Convert to fraction form
    10,987,789.70/16,481,684.55 = 8,118,008.30/x
  3. Step 3: Cross multiply
    10,987,789.70x = 16,481,684.55 × 8,118,008.30
  4. Step 4: Simplify right side
    10,987,789.70x = 133,798,451,974,881.77
  5. Step 5: Solve for x
    x = 133,798,451,974,881.77/10,987,789.70
  6. Step 6: Final answer
    x = 12,177,012.45

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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.