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Finding the Fourth Proportional to 648,336,371.43, 894,704,469.29 and 350,978,606.42

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Solution

The fourth proportional to 648,336,371.43, 894,704,469.29 and 350,978,606.42 is: 484,350,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,336,371.43 : 894,704,469.29 = 350,978,606.42 : x
  2. Step 2: Convert to fraction form
    648,336,371.43/894,704,469.29 = 350,978,606.42/x
  3. Step 3: Cross multiply
    648,336,371.43x = 894,704,469.29 × 350,978,606.42
  4. Step 4: Simplify right side
    648,336,371.43x = 314,022,127,784,227,136
  5. Step 5: Solve for x
    x = 314,022,127,784,227,136/648,336,371.43
  6. Step 6: Final answer
    x = 484,350,626.65

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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.