Home / 213,654,291.10-320,481,436.65-199,321,567.90

Finding the Fourth Proportional to 213,654,291.10, 320,481,436.65 and 199,321,567.90

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Solution

The fourth proportional to 213,654,291.10, 320,481,436.65 and 199,321,567.90 is: 298,982,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,654,291.10 : 320,481,436.65 = 199,321,567.90 : x
  2. Step 2: Convert to fraction form
    213,654,291.10/320,481,436.65 = 199,321,567.90/x
  3. Step 3: Cross multiply
    213,654,291.10x = 320,481,436.65 × 199,321,567.90
  4. Step 4: Simplify right side
    213,654,291.10x = 63,878,862,435,922,520
  5. Step 5: Solve for x
    x = 63,878,862,435,922,520/213,654,291.10
  6. Step 6: Final answer
    x = 298,982,351.85

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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.