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Finding the Fourth Proportional to 217,248,562.40, 325,872,843.60 and 189,188,477.60

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Solution

The fourth proportional to 217,248,562.40, 325,872,843.60 and 189,188,477.60 is: 283,782,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,248,562.40 : 325,872,843.60 = 189,188,477.60 : x
  2. Step 2: Convert to fraction form
    217,248,562.40/325,872,843.60 = 189,188,477.60/x
  3. Step 3: Cross multiply
    217,248,562.40x = 325,872,843.60 × 189,188,477.60
  4. Step 4: Simplify right side
    217,248,562.40x = 61,651,387,171,866,904
  5. Step 5: Solve for x
    x = 61,651,387,171,866,904/217,248,562.40
  6. Step 6: Final answer
    x = 283,782,716.40

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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.