Home / 766,825,356.80-1,150,993,862.40-379,086,003.20

Finding the Fourth Proportional to 766,825,356.80, 1,150,993,862.40 and 379,086,003.20

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Solution

The fourth proportional to 766,825,356.80, 1,150,993,862.40 and 379,086,003.20 is: 569,002,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,825,356.80 : 1,150,993,862.40 = 379,086,003.20 : x
  2. Step 2: Convert to fraction form
    766,825,356.80/1,150,993,862.40 = 379,086,003.20/x
  3. Step 3: Cross multiply
    766,825,356.80x = 1,150,993,862.40 × 379,086,003.20
  4. Step 4: Simplify right side
    766,825,356.80x = 436,325,663,004,946,752
  5. Step 5: Solve for x
    x = 436,325,663,004,946,752/766,825,356.80
  6. Step 6: Final answer
    x = 569,002,653.78

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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.