Home / 128,387,992,599.73-192,414,459,805.16-71,725,566,843.23

Finding the Fourth Proportional to 128,387,992,599.73, 192,414,459,805.16 and 71,725,566,843.23

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Solution

The fourth proportional to 128,387,992,599.73, 192,414,459,805.16 and 71,725,566,843.23 is: 107,494,758,029.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,387,992,599.73 : 192,414,459,805.16 = 71,725,566,843.23 : x
  2. Step 2: Convert to fraction form
    128,387,992,599.73/192,414,459,805.16 = 71,725,566,843.23/x
  3. Step 3: Cross multiply
    128,387,992,599.73x = 192,414,459,805.16 × 71,725,566,843.23
  4. Step 4: Simplify right side
    128,387,992,599.73x = 13,801,036,198,358,995,173,376
  5. Step 5: Solve for x
    x = 13,801,036,198,358,995,173,376/128,387,992,599.73
  6. Step 6: Final answer
    x = 107,494,758,029.17

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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.