Home / 921,205,188.42-1,383,033,629.49-484,812,328.24

Finding the Fourth Proportional to 921,205,188.42, 1,383,033,629.49 and 484,812,328.24

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Solution

The fourth proportional to 921,205,188.42, 1,383,033,629.49 and 484,812,328.24 is: 727,863,631.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,205,188.42 : 1,383,033,629.49 = 484,812,328.24 : x
  2. Step 2: Convert to fraction form
    921,205,188.42/1,383,033,629.49 = 484,812,328.24/x
  3. Step 3: Cross multiply
    921,205,188.42x = 1,383,033,629.49 × 484,812,328.24
  4. Step 4: Simplify right side
    921,205,188.42x = 670,511,753,947,264,384
  5. Step 5: Solve for x
    x = 670,511,753,947,264,384/921,205,188.42
  6. Step 6: Final answer
    x = 727,863,631.66

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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.