Home / 20,890,887.29-28,828,299.09-11,597,858.83

Finding the Fourth Proportional to 20,890,887.29, 28,828,299.09 and 11,597,858.83

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Solution

The fourth proportional to 20,890,887.29, 28,828,299.09 and 11,597,858.83 is: 16,004,420.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,890,887.29 : 28,828,299.09 = 11,597,858.83 : x
  2. Step 2: Convert to fraction form
    20,890,887.29/28,828,299.09 = 11,597,858.83/x
  3. Step 3: Cross multiply
    20,890,887.29x = 28,828,299.09 × 11,597,858.83
  4. Step 4: Simplify right side
    20,890,887.29x = 334,346,543,154,837.44
  5. Step 5: Solve for x
    x = 334,346,543,154,837.44/20,890,887.29
  6. Step 6: Final answer
    x = 16,004,420.42

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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.