Home / 128,387,993,563.87-192,414,461,255.14-71,725,567,807.37

Finding the Fourth Proportional to 128,387,993,563.87, 192,414,461,255.14 and 71,725,567,807.37

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Solution

The fourth proportional to 128,387,993,563.87, 192,414,461,255.14 and 71,725,567,807.37 is: 107,494,759,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,387,993,563.87 : 192,414,461,255.14 = 71,725,567,807.37 : x
  2. Step 2: Convert to fraction form
    128,387,993,563.87/192,414,461,255.14 = 71,725,567,807.37/x
  3. Step 3: Cross multiply
    128,387,993,563.87x = 192,414,461,255.14 × 71,725,567,807.37
  4. Step 4: Simplify right side
    128,387,993,563.87x = 13,801,036,487,874,496,692,224
  5. Step 5: Solve for x
    x = 13,801,036,487,874,496,692,224/128,387,993,563.87
  6. Step 6: Final answer
    x = 107,494,759,476.94

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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.