Home / 639,108,530.80-958,662,796.20-230,111,537.20

Finding the Fourth Proportional to 639,108,530.80, 958,662,796.20 and 230,111,537.20

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Solution

The fourth proportional to 639,108,530.80, 958,662,796.20 and 230,111,537.20 is: 345,167,305.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,108,530.80 : 958,662,796.20 = 230,111,537.20 : x
  2. Step 2: Convert to fraction form
    639,108,530.80/958,662,796.20 = 230,111,537.20/x
  3. Step 3: Cross multiply
    639,108,530.80x = 958,662,796.20 × 230,111,537.20
  4. Step 4: Simplify right side
    639,108,530.80x = 220,599,369,690,032,320
  5. Step 5: Solve for x
    x = 220,599,369,690,032,320/639,108,530.80
  6. Step 6: Final answer
    x = 345,167,305.80

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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.