Home / 128,387,993,564.88-192,414,461,256.64-71,725,567,808.38

Finding the Fourth Proportional to 128,387,993,564.88, 192,414,461,256.64 and 71,725,567,808.38

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Solution

The fourth proportional to 128,387,993,564.88, 192,414,461,256.64 and 71,725,567,808.38 is: 107,494,759,478.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,387,993,564.88 : 192,414,461,256.64 = 71,725,567,808.38 : x
  2. Step 2: Convert to fraction form
    128,387,993,564.88/192,414,461,256.64 = 71,725,567,808.38/x
  3. Step 3: Cross multiply
    128,387,993,564.88x = 192,414,461,256.64 × 71,725,567,808.38
  4. Step 4: Simplify right side
    128,387,993,564.88x = 13,801,036,488,176,039,886,848
  5. Step 5: Solve for x
    x = 13,801,036,488,176,039,886,848/128,387,993,564.88
  6. Step 6: Final answer
    x = 107,494,759,478.44

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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.