Home / 205,413,626.12-308,120,420.45-90,398,168.42

Finding the Fourth Proportional to 205,413,626.12, 308,120,420.45 and 90,398,168.42

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Solution

The fourth proportional to 205,413,626.12, 308,120,420.45 and 90,398,168.42 is: 135,597,244.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,413,626.12 : 308,120,420.45 = 90,398,168.42 : x
  2. Step 2: Convert to fraction form
    205,413,626.12/308,120,420.45 = 90,398,168.42/x
  3. Step 3: Cross multiply
    205,413,626.12x = 308,120,420.45 × 90,398,168.42
  4. Step 4: Simplify right side
    205,413,626.12x = 27,853,521,660,165,708
  5. Step 5: Solve for x
    x = 27,853,521,660,165,708/205,413,626.12
  6. Step 6: Final answer
    x = 135,597,244.38

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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.