Home / 1,383,017,978.14-1,908,570,560.07-747,938,469.91

Finding the Fourth Proportional to 1,383,017,978.14, 1,908,570,560.07 and 747,938,469.91

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Solution

The fourth proportional to 1,383,017,978.14, 1,908,570,560.07 and 747,938,469.91 is: 1,032,158,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,017,978.14 : 1,908,570,560.07 = 747,938,469.91 : x
  2. Step 2: Convert to fraction form
    1,383,017,978.14/1,908,570,560.07 = 747,938,469.91/x
  3. Step 3: Cross multiply
    1,383,017,978.14x = 1,908,570,560.07 × 747,938,469.91
  4. Step 4: Simplify right side
    1,383,017,978.14x = 1,427,493,344,414,027,520
  5. Step 5: Solve for x
    x = 1,427,493,344,414,027,520/1,383,017,978.14
  6. Step 6: Final answer
    x = 1,032,158,198.21

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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.