Home / 31,372,147.20-43,298,699.78-26,136,853.68

Finding the Fourth Proportional to 31,372,147.20, 43,298,699.78 and 26,136,853.68

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Solution

The fourth proportional to 31,372,147.20, 43,298,699.78 and 26,136,853.68 is: 36,073,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372,147.20 : 43,298,699.78 = 26,136,853.68 : x
  2. Step 2: Convert to fraction form
    31,372,147.20/43,298,699.78 = 26,136,853.68/x
  3. Step 3: Cross multiply
    31,372,147.20x = 43,298,699.78 × 26,136,853.68
  4. Step 4: Simplify right side
    31,372,147.20x = 1,131,691,780,553,423.75
  5. Step 5: Solve for x
    x = 1,131,691,780,553,423.75/31,372,147.20
  6. Step 6: Final answer
    x = 36,073,137.53

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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.