Home / 268,100,992.80-402,151,505.40-86,348,170.80

Finding the Fourth Proportional to 268,100,992.80, 402,151,505.40 and 86,348,170.80

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Solution

The fourth proportional to 268,100,992.80, 402,151,505.40 and 86,348,170.80 is: 129,522,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,100,992.80 : 402,151,505.40 = 86,348,170.80 : x
  2. Step 2: Convert to fraction form
    268,100,992.80/402,151,505.40 = 86,348,170.80/x
  3. Step 3: Cross multiply
    268,100,992.80x = 402,151,505.40 × 86,348,170.80
  4. Step 4: Simplify right side
    268,100,992.80x = 34,725,046,875,756,320
  5. Step 5: Solve for x
    x = 34,725,046,875,756,320/268,100,992.80
  6. Step 6: Final answer
    x = 129,522,261.42

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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.