Home / 20,535,192.24-28,338,899.40-11,242,605.48

Finding the Fourth Proportional to 20,535,192.24, 28,338,899.40 and 11,242,605.48

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Solution

The fourth proportional to 20,535,192.24, 28,338,899.40 and 11,242,605.48 is: 15,514,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,192.24 : 28,338,899.40 = 11,242,605.48 : x
  2. Step 2: Convert to fraction form
    20,535,192.24/28,338,899.40 = 11,242,605.48/x
  3. Step 3: Cross multiply
    20,535,192.24x = 28,338,899.40 × 11,242,605.48
  4. Step 4: Simplify right side
    20,535,192.24x = 318,603,065,691,608.69
  5. Step 5: Solve for x
    x = 318,603,065,691,608.69/20,535,192.24
  6. Step 6: Final answer
    x = 15,514,978.48

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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.