Home / 20,535,247.67-28,338,977.36-11,242,662.71

Finding the Fourth Proportional to 20,535,247.67, 28,338,977.36 and 11,242,662.71

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Solution

The fourth proportional to 20,535,247.67, 28,338,977.36 and 11,242,662.71 is: 15,515,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,247.67 : 28,338,977.36 = 11,242,662.71 : x
  2. Step 2: Convert to fraction form
    20,535,247.67/28,338,977.36 = 11,242,662.71/x
  3. Step 3: Cross multiply
    20,535,247.67x = 28,338,977.36 × 11,242,662.71
  4. Step 4: Simplify right side
    20,535,247.67x = 318,605,563,891,218
  5. Step 5: Solve for x
    x = 318,605,563,891,218/20,535,247.67
  6. Step 6: Final answer
    x = 15,515,058.26

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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.