Home / 725,640,390.28-1,088,056,777.69-430,655,380.84

Finding the Fourth Proportional to 725,640,390.28, 1,088,056,777.69 and 430,655,380.84

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Solution

The fourth proportional to 725,640,390.28, 1,088,056,777.69 and 430,655,380.84 is: 645,743,418.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,640,390.28 : 1,088,056,777.69 = 430,655,380.84 : x
  2. Step 2: Convert to fraction form
    725,640,390.28/1,088,056,777.69 = 430,655,380.84/x
  3. Step 3: Cross multiply
    725,640,390.28x = 1,088,056,777.69 × 430,655,380.84
  4. Step 4: Simplify right side
    725,640,390.28x = 468,577,505,964,036,544
  5. Step 5: Solve for x
    x = 468,577,505,964,036,544/725,640,390.28
  6. Step 6: Final answer
    x = 645,743,418.15

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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.