Home / 1,628,240,822.12-2,442,633,651.98-1,278,472,780.56

Finding the Fourth Proportional to 1,628,240,822.12, 2,442,633,651.98 and 1,278,472,780.56

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Solution

The fourth proportional to 1,628,240,822.12, 2,442,633,651.98 and 1,278,472,780.56 is: 1,917,923,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,240,822.12 : 2,442,633,651.98 = 1,278,472,780.56 : x
  2. Step 2: Convert to fraction form
    1,628,240,822.12/2,442,633,651.98 = 1,278,472,780.56/x
  3. Step 3: Cross multiply
    1,628,240,822.12x = 2,442,633,651.98 × 1,278,472,780.56
  4. Step 4: Simplify right side
    1,628,240,822.12x = 3,122,840,636,936,297,984
  5. Step 5: Solve for x
    x = 3,122,840,636,936,297,984/1,628,240,822.12
  6. Step 6: Final answer
    x = 1,917,923,070.42

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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.