Home / 511,215,777.39-705,509,388.01-282,069,430.75

Finding the Fourth Proportional to 511,215,777.39, 705,509,388.01 and 282,069,430.75

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Solution

The fourth proportional to 511,215,777.39, 705,509,388.01 and 282,069,430.75 is: 389,273,258.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,215,777.39 : 705,509,388.01 = 282,069,430.75 : x
  2. Step 2: Convert to fraction form
    511,215,777.39/705,509,388.01 = 282,069,430.75/x
  3. Step 3: Cross multiply
    511,215,777.39x = 705,509,388.01 × 282,069,430.75
  4. Step 4: Simplify right side
    511,215,777.39x = 199,002,631,464,761,568
  5. Step 5: Solve for x
    x = 199,002,631,464,761,568/511,215,777.39
  6. Step 6: Final answer
    x = 389,273,258.51

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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.