Home / 1,001,789,005.99-1,382,470,454.61-555,752,380.78

Finding the Fourth Proportional to 1,001,789,005.99, 1,382,470,454.61 and 555,752,380.78

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Solution

The fourth proportional to 1,001,789,005.99, 1,382,470,454.61 and 555,752,380.78 is: 766,939,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,789,005.99 : 1,382,470,454.61 = 555,752,380.78 : x
  2. Step 2: Convert to fraction form
    1,001,789,005.99/1,382,470,454.61 = 555,752,380.78/x
  3. Step 3: Cross multiply
    1,001,789,005.99x = 1,382,470,454.61 × 555,752,380.78
  4. Step 4: Simplify right side
    1,001,789,005.99x = 768,311,246,507,516,288
  5. Step 5: Solve for x
    x = 768,311,246,507,516,288/1,001,789,005.99
  6. Step 6: Final answer
    x = 766,939,187.71

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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.