Home / 1,025,378,154.20-1,538,109,221.70-298,366,866.20

Finding the Fourth Proportional to 1,025,378,154.20, 1,538,109,221.70 and 298,366,866.20

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Solution

The fourth proportional to 1,025,378,154.20, 1,538,109,221.70 and 298,366,866.20 is: 447,562,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,378,154.20 : 1,538,109,221.70 = 298,366,866.20 : x
  2. Step 2: Convert to fraction form
    1,025,378,154.20/1,538,109,221.70 = 298,366,866.20/x
  3. Step 3: Cross multiply
    1,025,378,154.20x = 1,538,109,221.70 × 298,366,866.20
  4. Step 4: Simplify right side
    1,025,378,154.20x = 458,920,828,351,950,016
  5. Step 5: Solve for x
    x = 458,920,828,351,950,016/1,025,378,154.20
  6. Step 6: Final answer
    x = 447,562,517.76

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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.