Home / 523,328,824.67-722,198,620.82-288,387,892.49

Finding the Fourth Proportional to 523,328,824.67, 722,198,620.82 and 288,387,892.49

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Solution

The fourth proportional to 523,328,824.67, 722,198,620.82 and 288,387,892.49 is: 397,977,960.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,328,824.67 : 722,198,620.82 = 288,387,892.49 : x
  2. Step 2: Convert to fraction form
    523,328,824.67/722,198,620.82 = 288,387,892.49/x
  3. Step 3: Cross multiply
    523,328,824.67x = 722,198,620.82 × 288,387,892.49
  4. Step 4: Simplify right side
    523,328,824.67x = 208,273,338,214,574,432
  5. Step 5: Solve for x
    x = 208,273,338,214,574,432/523,328,824.67
  6. Step 6: Final answer
    x = 397,977,960.32

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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.