Home / 20,379,395.08-28,123,564.26-11,211,841

Finding the Fourth Proportional to 20,379,395.08, 28,123,564.26 and 11,211,841

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Solution

The fourth proportional to 20,379,395.08, 28,123,564.26 and 11,211,841 is: 15,472,340.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,379,395.08 : 28,123,564.26 = 11,211,841 : x
  2. Step 2: Convert to fraction form
    20,379,395.08/28,123,564.26 = 11,211,841/x
  3. Step 3: Cross multiply
    20,379,395.08x = 28,123,564.26 × 11,211,841
  4. Step 4: Simplify right side
    20,379,395.08x = 315,316,930,836,402.69
  5. Step 5: Solve for x
    x = 315,316,930,836,402.69/20,379,395.08
  6. Step 6: Final answer
    x = 15,472,340.06

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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.