Home / 1,212,366,983.30-1,815,149,252.55-1,178,354,759.30

Finding the Fourth Proportional to 1,212,366,983.30, 1,815,149,252.55 and 1,178,354,759.30

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Solution

The fourth proportional to 1,212,366,983.30, 1,815,149,252.55 and 1,178,354,759.30 is: 1,764,226,335.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,366,983.30 : 1,815,149,252.55 = 1,178,354,759.30 : x
  2. Step 2: Convert to fraction form
    1,212,366,983.30/1,815,149,252.55 = 1,178,354,759.30/x
  3. Step 3: Cross multiply
    1,212,366,983.30x = 1,815,149,252.55 × 1,178,354,759.30
  4. Step 4: Simplify right side
    1,212,366,983.30x = 2,138,889,760,582,129,920
  5. Step 5: Solve for x
    x = 2,138,889,760,582,129,920/1,212,366,983.30
  6. Step 6: Final answer
    x = 1,764,226,335.79

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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.