Home / 418,701,758.63-628,146,304.42-127,591,664.85

Finding the Fourth Proportional to 418,701,758.63, 628,146,304.42 and 127,591,664.85

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Solution

The fourth proportional to 418,701,758.63, 628,146,304.42 and 127,591,664.85 is: 191,416,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,701,758.63 : 628,146,304.42 = 127,591,664.85 : x
  2. Step 2: Convert to fraction form
    418,701,758.63/628,146,304.42 = 127,591,664.85/x
  3. Step 3: Cross multiply
    418,701,758.63x = 628,146,304.42 × 127,591,664.85
  4. Step 4: Simplify right side
    418,701,758.63x = 80,146,232,750,672,624
  5. Step 5: Solve for x
    x = 80,146,232,750,672,624/418,701,758.63
  6. Step 6: Final answer
    x = 191,416,040.41

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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.