Home / 31,393,997.38-43,296,738.70-20,369,884.42

Finding the Fourth Proportional to 31,393,997.38, 43,296,738.70 and 20,369,884.42

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Solution

The fourth proportional to 31,393,997.38, 43,296,738.70 and 20,369,884.42 is: 28,092,936.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,393,997.38 : 43,296,738.70 = 20,369,884.42 : x
  2. Step 2: Convert to fraction form
    31,393,997.38/43,296,738.70 = 20,369,884.42/x
  3. Step 3: Cross multiply
    31,393,997.38x = 43,296,738.70 × 20,369,884.42
  4. Step 4: Simplify right side
    31,393,997.38x = 881,949,563,081,941.25
  5. Step 5: Solve for x
    x = 881,949,563,081,941.25/31,393,997.38
  6. Step 6: Final answer
    x = 28,092,936.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.