Home / 1,294,707,855.30-1,940,786,324.55-639,759,966.90

Finding the Fourth Proportional to 1,294,707,855.30, 1,940,786,324.55 and 639,759,966.90

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Solution

The fourth proportional to 1,294,707,855.30, 1,940,786,324.55 and 639,759,966.90 is: 959,009,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,707,855.30 : 1,940,786,324.55 = 639,759,966.90 : x
  2. Step 2: Convert to fraction form
    1,294,707,855.30/1,940,786,324.55 = 639,759,966.90/x
  3. Step 3: Cross multiply
    1,294,707,855.30x = 1,940,786,324.55 × 639,759,966.90
  4. Step 4: Simplify right side
    1,294,707,855.30x = 1,241,637,394,754,080,512
  5. Step 5: Solve for x
    x = 1,241,637,394,754,080,512/1,294,707,855.30
  6. Step 6: Final answer
    x = 959,009,702.21

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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.