Home / 1,040,128,469.78-1,560,729,106.11-487,487,042.42

Finding the Fourth Proportional to 1,040,128,469.78, 1,560,729,106.11 and 487,487,042.42

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Solution

The fourth proportional to 1,040,128,469.78, 1,560,729,106.11 and 487,487,042.42 is: 731,481,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,128,469.78 : 1,560,729,106.11 = 487,487,042.42 : x
  2. Step 2: Convert to fraction form
    1,040,128,469.78/1,560,729,106.11 = 487,487,042.42/x
  3. Step 3: Cross multiply
    1,040,128,469.78x = 1,560,729,106.11 × 487,487,042.42
  4. Step 4: Simplify right side
    1,040,128,469.78x = 760,835,215,956,374,272
  5. Step 5: Solve for x
    x = 760,835,215,956,374,272/1,040,128,469.78
  6. Step 6: Final answer
    x = 731,481,964.07

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Double scale
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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.