Home / 79,914,809.21-110,221,668.13-68,770,086.64

Finding the Fourth Proportional to 79,914,809.21, 110,221,668.13 and 68,770,086.64

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Solution

The fourth proportional to 79,914,809.21, 110,221,668.13 and 68,770,086.64 is: 94,850,425.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,914,809.21 : 110,221,668.13 = 68,770,086.64 : x
  2. Step 2: Convert to fraction form
    79,914,809.21/110,221,668.13 = 68,770,086.64/x
  3. Step 3: Cross multiply
    79,914,809.21x = 110,221,668.13 × 68,770,086.64
  4. Step 4: Simplify right side
    79,914,809.21x = 7,579,953,666,010,469
  5. Step 5: Solve for x
    x = 7,579,953,666,010,469/79,914,809.21
  6. Step 6: Final answer
    x = 94,850,425.61

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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.