Home / 207,679,147.41-286,685,469.21-129,401,375.69

Finding the Fourth Proportional to 207,679,147.41, 286,685,469.21 and 129,401,375.69

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Solution

The fourth proportional to 207,679,147.41, 286,685,469.21 and 129,401,375.69 is: 178,628,882.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,679,147.41 : 286,685,469.21 = 129,401,375.69 : x
  2. Step 2: Convert to fraction form
    207,679,147.41/286,685,469.21 = 129,401,375.69/x
  3. Step 3: Cross multiply
    207,679,147.41x = 286,685,469.21 × 129,401,375.69
  4. Step 4: Simplify right side
    207,679,147.41x = 37,097,494,105,812,728
  5. Step 5: Solve for x
    x = 37,097,494,105,812,728/207,679,147.41
  6. Step 6: Final answer
    x = 178,628,882.91

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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.