Home / 77,659,404.80-116,489,107.20-76,147,750.40

Finding the Fourth Proportional to 77,659,404.80, 116,489,107.20 and 76,147,750.40

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Solution

The fourth proportional to 77,659,404.80, 116,489,107.20 and 76,147,750.40 is: 114,221,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,659,404.80 : 116,489,107.20 = 76,147,750.40 : x
  2. Step 2: Convert to fraction form
    77,659,404.80/116,489,107.20 = 76,147,750.40/x
  3. Step 3: Cross multiply
    77,659,404.80x = 116,489,107.20 × 76,147,750.40
  4. Step 4: Simplify right side
    77,659,404.80x = 8,870,383,459,384,444
  5. Step 5: Solve for x
    x = 8,870,383,459,384,444/77,659,404.80
  6. Step 6: Final answer
    x = 114,221,625.60

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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.