Home / 20,539,736.72-28,345,722.36-11,372,379.44

Finding the Fourth Proportional to 20,539,736.72, 28,345,722.36 and 11,372,379.44

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Solution

The fourth proportional to 20,539,736.72, 28,345,722.36 and 11,372,379.44 is: 15,694,374.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,736.72 : 28,345,722.36 = 11,372,379.44 : x
  2. Step 2: Convert to fraction form
    20,539,736.72/28,345,722.36 = 11,372,379.44/x
  3. Step 3: Cross multiply
    20,539,736.72x = 28,345,722.36 × 11,372,379.44
  4. Step 4: Simplify right side
    20,539,736.72x = 322,358,310,178,812.25
  5. Step 5: Solve for x
    x = 322,358,310,178,812.25/20,539,736.72
  6. Step 6: Final answer
    x = 15,694,374.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.