Home / 18,933,939.32-28,372,006.53-11,242,437.71

Finding the Fourth Proportional to 18,933,939.32, 28,372,006.53 and 11,242,437.71

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Solution

The fourth proportional to 18,933,939.32, 28,372,006.53 and 11,242,437.71 is: 16,846,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933,939.32 : 28,372,006.53 = 11,242,437.71 : x
  2. Step 2: Convert to fraction form
    18,933,939.32/28,372,006.53 = 11,242,437.71/x
  3. Step 3: Cross multiply
    18,933,939.32x = 28,372,006.53 × 11,242,437.71
  4. Step 4: Simplify right side
    18,933,939.32x = 318,970,515,979,378.25
  5. Step 5: Solve for x
    x = 318,970,515,979,378.25/18,933,939.32
  6. Step 6: Final answer
    x = 16,846,495.10

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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.