Home / 638,906,083,014.60-958,418,039,170.05-208,645,422,735.24

Finding the Fourth Proportional to 638,906,083,014.60, 958,418,039,170.05 and 208,645,422,735.24

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Solution

The fourth proportional to 638,906,083,014.60, 958,418,039,170.05 and 208,645,422,735.24 is: 312,987,373,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,906,083,014.60 : 958,418,039,170.05 = 208,645,422,735.24 : x
  2. Step 2: Convert to fraction form
    638,906,083,014.60/958,418,039,170.05 = 208,645,422,735.24/x
  3. Step 3: Cross multiply
    638,906,083,014.60x = 958,418,039,170.05 × 208,645,422,735.24
  4. Step 4: Simplify right side
    638,906,083,014.60x = 199,969,536,939,714,894,888,960
  5. Step 5: Solve for x
    x = 199,969,536,939,714,894,888,960/638,906,083,014.60
  6. Step 6: Final answer
    x = 312,987,373,662.47

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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.