Home / 79,178,911.78-109,228,069.68-68,710,234.86

Finding the Fourth Proportional to 79,178,911.78, 109,228,069.68 and 68,710,234.86

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Solution

The fourth proportional to 79,178,911.78, 109,228,069.68 and 68,710,234.86 is: 94,786,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,178,911.78 : 109,228,069.68 = 68,710,234.86 : x
  2. Step 2: Convert to fraction form
    79,178,911.78/109,228,069.68 = 68,710,234.86/x
  3. Step 3: Cross multiply
    79,178,911.78x = 109,228,069.68 × 68,710,234.86
  4. Step 4: Simplify right side
    79,178,911.78x = 7,505,086,321,017,245
  5. Step 5: Solve for x
    x = 7,505,086,321,017,245/79,178,911.78
  6. Step 6: Final answer
    x = 94,786,429.27

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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.