Home / 443,839,989.05-611,997,953.78-331,972,321.94

Finding the Fourth Proportional to 443,839,989.05, 611,997,953.78 and 331,972,321.94

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Solution

The fourth proportional to 443,839,989.05, 611,997,953.78 and 331,972,321.94 is: 457,746,905.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,839,989.05 : 611,997,953.78 = 331,972,321.94 : x
  2. Step 2: Convert to fraction form
    443,839,989.05/611,997,953.78 = 331,972,321.94/x
  3. Step 3: Cross multiply
    443,839,989.05x = 611,997,953.78 × 331,972,321.94
  4. Step 4: Simplify right side
    443,839,989.05x = 203,166,381,737,081,312
  5. Step 5: Solve for x
    x = 203,166,381,737,081,312/443,839,989.05
  6. Step 6: Final answer
    x = 457,746,905.98

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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.