Home / 221,692,911.27-305,946,880.70-122,571,824.55

Finding the Fourth Proportional to 221,692,911.27, 305,946,880.70 and 122,571,824.55

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Solution

The fourth proportional to 221,692,911.27, 305,946,880.70 and 122,571,824.55 is: 169,155,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,692,911.27 : 305,946,880.70 = 122,571,824.55 : x
  2. Step 2: Convert to fraction form
    221,692,911.27/305,946,880.70 = 122,571,824.55/x
  3. Step 3: Cross multiply
    221,692,911.27x = 305,946,880.70 × 122,571,824.55
  4. Step 4: Simplify right side
    221,692,911.27x = 37,500,467,382,167,320
  5. Step 5: Solve for x
    x = 37,500,467,382,167,320/221,692,911.27
  6. Step 6: Final answer
    x = 169,155,013.43

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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.