Home / 80,662,770,138.72-111,324,383,839.65-45,909,040,442.13

Finding the Fourth Proportional to 80,662,770,138.72, 111,324,383,839.65 and 45,909,040,442.13

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Solution

The fourth proportional to 80,662,770,138.72, 111,324,383,839.65 and 45,909,040,442.13 is: 63,360,031,289.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,662,770,138.72 : 111,324,383,839.65 = 45,909,040,442.13 : x
  2. Step 2: Convert to fraction form
    80,662,770,138.72/111,324,383,839.65 = 45,909,040,442.13/x
  3. Step 3: Cross multiply
    80,662,770,138.72x = 111,324,383,839.65 × 45,909,040,442.13
  4. Step 4: Simplify right side
    80,662,770,138.72x = 5,110,795,639,889,695,080,448
  5. Step 5: Solve for x
    x = 5,110,795,639,889,695,080,448/80,662,770,138.72
  6. Step 6: Final answer
    x = 63,360,031,289.53

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1.5x scale

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.