Home / 729,758,890.10-1,007,066,950.26-395,231,428.10

Finding the Fourth Proportional to 729,758,890.10, 1,007,066,950.26 and 395,231,428.10

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Solution

The fourth proportional to 729,758,890.10, 1,007,066,950.26 and 395,231,428.10 is: 545,419,198.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,758,890.10 : 1,007,066,950.26 = 395,231,428.10 : x
  2. Step 2: Convert to fraction form
    729,758,890.10/1,007,066,950.26 = 395,231,428.10/x
  3. Step 3: Cross multiply
    729,758,890.10x = 1,007,066,950.26 × 395,231,428.10
  4. Step 4: Simplify right side
    729,758,890.10x = 398,024,508,943,571,456
  5. Step 5: Solve for x
    x = 398,024,508,943,571,456/729,758,890.10
  6. Step 6: Final answer
    x = 545,419,198.51

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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.