Home / 1,164,920,963.78-1,747,387,977.96-388,564,493.24

Finding the Fourth Proportional to 1,164,920,963.78, 1,747,387,977.96 and 388,564,493.24

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Solution

The fourth proportional to 1,164,920,963.78, 1,747,387,977.96 and 388,564,493.24 is: 582,848,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164,920,963.78 : 1,747,387,977.96 = 388,564,493.24 : x
  2. Step 2: Convert to fraction form
    1,164,920,963.78/1,747,387,977.96 = 388,564,493.24/x
  3. Step 3: Cross multiply
    1,164,920,963.78x = 1,747,387,977.96 × 388,564,493.24
  4. Step 4: Simplify right side
    1,164,920,963.78x = 678,972,924,149,695,744
  5. Step 5: Solve for x
    x = 678,972,924,149,695,744/1,164,920,963.78
  6. Step 6: Final answer
    x = 582,848,918.73

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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.