Home / 20,578,237.25-28,398,488.82-11,286,177.26

Finding the Fourth Proportional to 20,578,237.25, 28,398,488.82 and 11,286,177.26

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Solution

The fourth proportional to 20,578,237.25, 28,398,488.82 and 11,286,177.26 is: 15,575,210.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578,237.25 : 28,398,488.82 = 11,286,177.26 : x
  2. Step 2: Convert to fraction form
    20,578,237.25/28,398,488.82 = 11,286,177.26/x
  3. Step 3: Cross multiply
    20,578,237.25x = 28,398,488.82 × 11,286,177.26
  4. Step 4: Simplify right side
    20,578,237.25x = 320,510,378,738,648.25
  5. Step 5: Solve for x
    x = 320,510,378,738,648.25/20,578,237.25
  6. Step 6: Final answer
    x = 15,575,210.59

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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.