Home / 1,040,145,744.97-1,435,400,781.60-570,236,976.73

Finding the Fourth Proportional to 1,040,145,744.97, 1,435,400,781.60 and 570,236,976.73

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Solution

The fourth proportional to 1,040,145,744.97, 1,435,400,781.60 and 570,236,976.73 is: 786,926,837.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,145,744.97 : 1,435,400,781.60 = 570,236,976.73 : x
  2. Step 2: Convert to fraction form
    1,040,145,744.97/1,435,400,781.60 = 570,236,976.73/x
  3. Step 3: Cross multiply
    1,040,145,744.97x = 1,435,400,781.60 × 570,236,976.73
  4. Step 4: Simplify right side
    1,040,145,744.97x = 818,518,602,095,463,040
  5. Step 5: Solve for x
    x = 818,518,602,095,463,040/1,040,145,744.97
  6. Step 6: Final answer
    x = 786,926,837.95

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Double scale
Find fourth proportional to 1,040,145,745.97, 1,435,400,782.98 and 570,236,977.73
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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.