Home / 127,639,359.78-176,147,014.82-71,129,183.85

Finding the Fourth Proportional to 127,639,359.78, 176,147,014.82 and 71,129,183.85

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Solution

The fourth proportional to 127,639,359.78, 176,147,014.82 and 71,129,183.85 is: 98,160,891.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,639,359.78 : 176,147,014.82 = 71,129,183.85 : x
  2. Step 2: Convert to fraction form
    127,639,359.78/176,147,014.82 = 71,129,183.85/x
  3. Step 3: Cross multiply
    127,639,359.78x = 176,147,014.82 × 71,129,183.85
  4. Step 4: Simplify right side
    127,639,359.78x = 12,529,193,401,760,454
  5. Step 5: Solve for x
    x = 12,529,193,401,760,454/127,639,359.78
  6. Step 6: Final answer
    x = 98,160,891.93

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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.