Home / 20,129,633.80-30,159,021.30-17,295,281.80

Finding the Fourth Proportional to 20,129,633.80, 30,159,021.30 and 17,295,281.80

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Solution

The fourth proportional to 20,129,633.80, 30,159,021.30 and 17,295,281.80 is: 25,912,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,633.80 : 30,159,021.30 = 17,295,281.80 : x
  2. Step 2: Convert to fraction form
    20,129,633.80/30,159,021.30 = 17,295,281.80/x
  3. Step 3: Cross multiply
    20,129,633.80x = 30,159,021.30 × 17,295,281.80
  4. Step 4: Simplify right side
    20,129,633.80x = 521,608,772,195,702.38
  5. Step 5: Solve for x
    x = 521,608,772,195,702.38/20,129,633.80
  6. Step 6: Final answer
    x = 25,912,481.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.