Home / 1,010,786,067.88-1,394,956,954.53-558,654,308.78

Finding the Fourth Proportional to 1,010,786,067.88, 1,394,956,954.53 and 558,654,308.78

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Solution

The fourth proportional to 1,010,786,067.88, 1,394,956,954.53 and 558,654,308.78 is: 770,982,839.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,786,067.88 : 1,394,956,954.53 = 558,654,308.78 : x
  2. Step 2: Convert to fraction form
    1,010,786,067.88/1,394,956,954.53 = 558,654,308.78/x
  3. Step 3: Cross multiply
    1,010,786,067.88x = 1,394,956,954.53 × 558,654,308.78
  4. Step 4: Simplify right side
    1,010,786,067.88x = 779,298,713,203,836,160
  5. Step 5: Solve for x
    x = 779,298,713,203,836,160/1,010,786,067.88
  6. Step 6: Final answer
    x = 770,982,839.96

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Double scale
Find fourth proportional to 1,010,786,068.88, 1,394,956,955.91 and 558,654,309.78
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.