Home / 20,739,774.56-31,111,156.54-7,960,279.28

Finding the Fourth Proportional to 20,739,774.56, 31,111,156.54 and 7,960,279.28

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Solution

The fourth proportional to 20,739,774.56, 31,111,156.54 and 7,960,279.28 is: 11,940,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,774.56 : 31,111,156.54 = 7,960,279.28 : x
  2. Step 2: Convert to fraction form
    20,739,774.56/31,111,156.54 = 7,960,279.28/x
  3. Step 3: Cross multiply
    20,739,774.56x = 31,111,156.54 × 7,960,279.28
  4. Step 4: Simplify right side
    20,739,774.56x = 247,653,494,782,198.50
  5. Step 5: Solve for x
    x = 247,653,494,782,198.50/20,739,774.56
  6. Step 6: Final answer
    x = 11,940,992.61

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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.