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Finding the Fourth Proportional to 442,872,212.80, 664,308,319.20 and 170,251,873.60

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Solution

The fourth proportional to 442,872,212.80, 664,308,319.20 and 170,251,873.60 is: 255,377,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,872,212.80 : 664,308,319.20 = 170,251,873.60 : x
  2. Step 2: Convert to fraction form
    442,872,212.80/664,308,319.20 = 170,251,873.60/x
  3. Step 3: Cross multiply
    442,872,212.80x = 664,308,319.20 × 170,251,873.60
  4. Step 4: Simplify right side
    442,872,212.80x = 113,099,735,991,866,864
  5. Step 5: Solve for x
    x = 113,099,735,991,866,864/442,872,212.80
  6. Step 6: Final answer
    x = 255,377,810.40

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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.