Home / 523,297,142.78-722,117,518.82-288,334,654.52

Finding the Fourth Proportional to 523,297,142.78, 722,117,518.82 and 288,334,654.52

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Solution

The fourth proportional to 523,297,142.78, 722,117,518.82 and 288,334,654.52 is: 397,883,894.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,297,142.78 : 722,117,518.82 = 288,334,654.52 : x
  2. Step 2: Convert to fraction form
    523,297,142.78/722,117,518.82 = 288,334,654.52/x
  3. Step 3: Cross multiply
    523,297,142.78x = 722,117,518.82 × 288,334,654.52
  4. Step 4: Simplify right side
    523,297,142.78x = 208,211,505,311,804,288
  5. Step 5: Solve for x
    x = 208,211,505,311,804,288/523,297,142.78
  6. Step 6: Final answer
    x = 397,883,894.81

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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.