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Finding the Fourth Proportional to 889,794,629.71, 1,333,757,645.51 and 299,379,907.38

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Solution

The fourth proportional to 889,794,629.71, 1,333,757,645.51 and 299,379,907.38 is: 448,755,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,794,629.71 : 1,333,757,645.51 = 299,379,907.38 : x
  2. Step 2: Convert to fraction form
    889,794,629.71/1,333,757,645.51 = 299,379,907.38/x
  3. Step 3: Cross multiply
    889,794,629.71x = 1,333,757,645.51 × 299,379,907.38
  4. Step 4: Simplify right side
    889,794,629.71x = 399,300,240,376,489,600
  5. Step 5: Solve for x
    x = 399,300,240,376,489,600/889,794,629.71
  6. Step 6: Final answer
    x = 448,755,507.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.