Home / 487,815,488.45-673,198,852.98-276,105,490.37

Finding the Fourth Proportional to 487,815,488.45, 673,198,852.98 and 276,105,490.37

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Solution

The fourth proportional to 487,815,488.45, 673,198,852.98 and 276,105,490.37 is: 381,033,205.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,815,488.45 : 673,198,852.98 = 276,105,490.37 : x
  2. Step 2: Convert to fraction form
    487,815,488.45/673,198,852.98 = 276,105,490.37/x
  3. Step 3: Cross multiply
    487,815,488.45x = 673,198,852.98 × 276,105,490.37
  4. Step 4: Simplify right side
    487,815,488.45x = 185,873,899,415,198,464
  5. Step 5: Solve for x
    x = 185,873,899,415,198,464/487,815,488.45
  6. Step 6: Final answer
    x = 381,033,205.83

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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.