Home / 129,117,519,786.67-178,246,686,042.18-80,304,074,203.24

Finding the Fourth Proportional to 129,117,519,786.67, 178,246,686,042.18 and 80,304,074,203.24

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Solution

The fourth proportional to 129,117,519,786.67, 178,246,686,042.18 and 80,304,074,203.24 is: 110,859,743,325.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,117,519,786.67 : 178,246,686,042.18 = 80,304,074,203.24 : x
  2. Step 2: Convert to fraction form
    129,117,519,786.67/178,246,686,042.18 = 80,304,074,203.24/x
  3. Step 3: Cross multiply
    129,117,519,786.67x = 178,246,686,042.18 × 80,304,074,203.24
  4. Step 4: Simplify right side
    129,117,519,786.67x = 14,313,935,102,411,953,668,096
  5. Step 5: Solve for x
    x = 14,313,935,102,411,953,668,096/129,117,519,786.67
  6. Step 6: Final answer
    x = 110,859,743,325.78

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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.