Home / 457,319,338.60-685,979,007.90-329,135,769.40

Finding the Fourth Proportional to 457,319,338.60, 685,979,007.90 and 329,135,769.40

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Solution

The fourth proportional to 457,319,338.60, 685,979,007.90 and 329,135,769.40 is: 493,703,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,319,338.60 : 685,979,007.90 = 329,135,769.40 : x
  2. Step 2: Convert to fraction form
    457,319,338.60/685,979,007.90 = 329,135,769.40/x
  3. Step 3: Cross multiply
    457,319,338.60x = 685,979,007.90 × 329,135,769.40
  4. Step 4: Simplify right side
    457,319,338.60x = 225,780,228,557,415,168
  5. Step 5: Solve for x
    x = 225,780,228,557,415,168/457,319,338.60
  6. Step 6: Final answer
    x = 493,703,654.10

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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.