Home / 10,987,999.20-16,488,997.20-6,439,039.20

Finding the Fourth Proportional to 10,987,999.20, 16,488,997.20 and 6,439,039.20

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Solution

The fourth proportional to 10,987,999.20, 16,488,997.20 and 6,439,039.20 is: 9,662,659.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987,999.20 : 16,488,997.20 = 6,439,039.20 : x
  2. Step 2: Convert to fraction form
    10,987,999.20/16,488,997.20 = 6,439,039.20/x
  3. Step 3: Cross multiply
    10,987,999.20x = 16,488,997.20 × 6,439,039.20
  4. Step 4: Simplify right side
    10,987,999.20x = 106,173,299,339,490.23
  5. Step 5: Solve for x
    x = 106,173,299,339,490.23/10,987,999.20
  6. Step 6: Final answer
    x = 9,662,659.91

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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.