Home / 386,251,715.44-533,041,384.20-221,271,171.40

Finding the Fourth Proportional to 386,251,715.44, 533,041,384.20 and 221,271,171.40

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Solution

The fourth proportional to 386,251,715.44, 533,041,384.20 and 221,271,171.40 is: 305,362,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,251,715.44 : 533,041,384.20 = 221,271,171.40 : x
  2. Step 2: Convert to fraction form
    386,251,715.44/533,041,384.20 = 221,271,171.40/x
  3. Step 3: Cross multiply
    386,251,715.44x = 533,041,384.20 × 221,271,171.40
  4. Step 4: Simplify right side
    386,251,715.44x = 117,946,691,486,611,456
  5. Step 5: Solve for x
    x = 117,946,691,486,611,456/386,251,715.44
  6. Step 6: Final answer
    x = 305,362,246.36

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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.