Home / 431,350,286.40-646,865,997.30-140,226,906.60

Finding the Fourth Proportional to 431,350,286.40, 646,865,997.30 and 140,226,906.60

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Solution

The fourth proportional to 431,350,286.40, 646,865,997.30 and 140,226,906.60 is: 210,288,530.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,350,286.40 : 646,865,997.30 = 140,226,906.60 : x
  2. Step 2: Convert to fraction form
    431,350,286.40/646,865,997.30 = 140,226,906.60/x
  3. Step 3: Cross multiply
    431,350,286.40x = 646,865,997.30 × 140,226,906.60
  4. Step 4: Simplify right side
    431,350,286.40x = 90,708,017,786,102,944
  5. Step 5: Solve for x
    x = 90,708,017,786,102,944/431,350,286.40
  6. Step 6: Final answer
    x = 210,288,530.33

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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.