Home / 838,759,725.43-1,258,321,200.75-321,190,184.36

Finding the Fourth Proportional to 838,759,725.43, 1,258,321,200.75 and 321,190,184.36

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Solution

The fourth proportional to 838,759,725.43, 1,258,321,200.75 and 321,190,184.36 is: 481,854,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,759,725.43 : 1,258,321,200.75 = 321,190,184.36 : x
  2. Step 2: Convert to fraction form
    838,759,725.43/1,258,321,200.75 = 321,190,184.36/x
  3. Step 3: Cross multiply
    838,759,725.43x = 1,258,321,200.75 × 321,190,184.36
  4. Step 4: Simplify right side
    838,759,725.43x = 404,160,418,452,989,120
  5. Step 5: Solve for x
    x = 404,160,418,452,989,120/838,759,725.43
  6. Step 6: Final answer
    x = 481,854,822.30

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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.