Home / 128,606,491,329.54-177,477,105,172.14-71,512,576,001.75

Finding the Fourth Proportional to 128,606,491,329.54, 177,477,105,172.14 and 71,512,576,001.75

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Solution

The fourth proportional to 128,606,491,329.54, 177,477,105,172.14 and 71,512,576,001.75 is: 98,687,436,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,606,491,329.54 : 177,477,105,172.14 = 71,512,576,001.75 : x
  2. Step 2: Convert to fraction form
    128,606,491,329.54/177,477,105,172.14 = 71,512,576,001.75/x
  3. Step 3: Cross multiply
    128,606,491,329.54x = 177,477,105,172.14 × 71,512,576,001.75
  4. Step 4: Simplify right side
    128,606,491,329.54x = 12,691,844,972,192,351,649,792
  5. Step 5: Solve for x
    x = 12,691,844,972,192,351,649,792/128,606,491,329.54
  6. Step 6: Final answer
    x = 98,687,436,699.22

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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.