Home / 457,328,200.68-685,606,661.82-198,348,357.24

Finding the Fourth Proportional to 457,328,200.68, 685,606,661.82 and 198,348,357.24

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Solution

The fourth proportional to 457,328,200.68, 685,606,661.82 and 198,348,357.24 is: 297,355,279.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,328,200.68 : 685,606,661.82 = 198,348,357.24 : x
  2. Step 2: Convert to fraction form
    457,328,200.68/685,606,661.82 = 198,348,357.24/x
  3. Step 3: Cross multiply
    457,328,200.68x = 685,606,661.82 × 198,348,357.24
  4. Step 4: Simplify right side
    457,328,200.68x = 135,988,955,084,797,248
  5. Step 5: Solve for x
    x = 135,988,955,084,797,248/457,328,200.68
  6. Step 6: Final answer
    x = 297,355,279.82

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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.