Home / 1,040,145,743.97-1,435,400,780.22-570,236,975.73

Finding the Fourth Proportional to 1,040,145,743.97, 1,435,400,780.22 and 570,236,975.73

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Solution

The fourth proportional to 1,040,145,743.97, 1,435,400,780.22 and 570,236,975.73 is: 786,926,836.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,145,743.97 : 1,435,400,780.22 = 570,236,975.73 : x
  2. Step 2: Convert to fraction form
    1,040,145,743.97/1,435,400,780.22 = 570,236,975.73/x
  3. Step 3: Cross multiply
    1,040,145,743.97x = 1,435,400,780.22 × 570,236,975.73
  4. Step 4: Simplify right side
    1,040,145,743.97x = 818,518,599,873,135,232
  5. Step 5: Solve for x
    x = 818,518,599,873,135,232/1,040,145,743.97
  6. Step 6: Final answer
    x = 786,926,836.57

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Double scale
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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.