Home / 1,077,064,759.28-1,615,597,080.72-259,177,147.76

Finding the Fourth Proportional to 1,077,064,759.28, 1,615,597,080.72 and 259,177,147.76

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Solution

The fourth proportional to 1,077,064,759.28, 1,615,597,080.72 and 259,177,147.76 is: 388,765,707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,064,759.28 : 1,615,597,080.72 = 259,177,147.76 : x
  2. Step 2: Convert to fraction form
    1,077,064,759.28/1,615,597,080.72 = 259,177,147.76/x
  3. Step 3: Cross multiply
    1,077,064,759.28x = 1,615,597,080.72 × 259,177,147.76
  4. Step 4: Simplify right side
    1,077,064,759.28x = 418,725,843,310,392,064
  5. Step 5: Solve for x
    x = 418,725,843,310,392,064/1,077,064,759.28
  6. Step 6: Final answer
    x = 388,765,707.64

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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.