Home / 421,946,172.44-632,894,744.82-126,834,919.64

Finding the Fourth Proportional to 421,946,172.44, 632,894,744.82 and 126,834,919.64

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Solution

The fourth proportional to 421,946,172.44, 632,894,744.82 and 126,834,919.64 is: 190,245,010.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,946,172.44 : 632,894,744.82 = 126,834,919.64 : x
  2. Step 2: Convert to fraction form
    421,946,172.44/632,894,744.82 = 126,834,919.64/x
  3. Step 3: Cross multiply
    421,946,172.44x = 632,894,744.82 × 126,834,919.64
  4. Step 4: Simplify right side
    421,946,172.44x = 80,273,154,099,823,008
  5. Step 5: Solve for x
    x = 80,273,154,099,823,008/421,946,172.44
  6. Step 6: Final answer
    x = 190,245,010.72

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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.