Home / 386,251,777.62-533,041,469.92-221,271,233.58

Finding the Fourth Proportional to 386,251,777.62, 533,041,469.92 and 221,271,233.58

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Solution

The fourth proportional to 386,251,777.62, 533,041,469.92 and 221,271,233.58 is: 305,362,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,251,777.62 : 533,041,469.92 = 221,271,233.58 : x
  2. Step 2: Convert to fraction form
    386,251,777.62/533,041,469.92 = 221,271,233.58/x
  3. Step 3: Cross multiply
    386,251,777.62x = 533,041,469.92 × 221,271,233.58
  4. Step 4: Simplify right side
    386,251,777.62x = 117,946,743,598,494,880
  5. Step 5: Solve for x
    x = 117,946,743,598,494,880/386,251,777.62
  6. Step 6: Final answer
    x = 305,362,332.12

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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.