Home / 128,304,425.85-192,456,638.78-125,753,509.05

Finding the Fourth Proportional to 128,304,425.85, 192,456,638.78 and 125,753,509.05

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Solution

The fourth proportional to 128,304,425.85, 192,456,638.78 and 125,753,509.05 is: 188,630,263.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,425.85 : 192,456,638.78 = 125,753,509.05 : x
  2. Step 2: Convert to fraction form
    128,304,425.85/192,456,638.78 = 125,753,509.05/x
  3. Step 3: Cross multiply
    128,304,425.85x = 192,456,638.78 × 125,753,509.05
  4. Step 4: Simplify right side
    128,304,425.85x = 24,202,097,665,924,544
  5. Step 5: Solve for x
    x = 24,202,097,665,924,544/128,304,425.85
  6. Step 6: Final answer
    x = 188,630,263.58

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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.