Home / 213,481,365,336.94-320,220,660,940.78-54,303,104,763.76

Finding the Fourth Proportional to 213,481,365,336.94, 320,220,660,940.78 and 54,303,104,763.76

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Solution

The fourth proportional to 213,481,365,336.94, 320,220,660,940.78 and 54,303,104,763.76 is: 81,454,304,318.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,481,365,336.94 : 320,220,660,940.78 = 54,303,104,763.76 : x
  2. Step 2: Convert to fraction form
    213,481,365,336.94/320,220,660,940.78 = 54,303,104,763.76/x
  3. Step 3: Cross multiply
    213,481,365,336.94x = 320,220,660,940.78 × 54,303,104,763.76
  4. Step 4: Simplify right side
    213,481,365,336.94x = 17,388,976,098,587,648,720,896
  5. Step 5: Solve for x
    x = 17,388,976,098,587,648,720,896/213,481,365,336.94
  6. Step 6: Final answer
    x = 81,454,304,318.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.