Home / 127,489,874,892.21-175,872,481,426.39-76,012,129,405.35

Finding the Fourth Proportional to 127,489,874,892.21, 175,872,481,426.39 and 76,012,129,405.35

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Solution

The fourth proportional to 127,489,874,892.21, 175,872,481,426.39 and 76,012,129,405.35 is: 104,858,851,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,489,874,892.21 : 175,872,481,426.39 = 76,012,129,405.35 : x
  2. Step 2: Convert to fraction form
    127,489,874,892.21/175,872,481,426.39 = 76,012,129,405.35/x
  3. Step 3: Cross multiply
    127,489,874,892.21x = 175,872,481,426.39 × 76,012,129,405.35
  4. Step 4: Simplify right side
    127,489,874,892.21x = 13,368,441,817,022,773,329,920
  5. Step 5: Solve for x
    x = 13,368,441,817,022,773,329,920/127,489,874,892.21
  6. Step 6: Final answer
    x = 104,858,851,170.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.