Home / 30,378,165.54-41,922,606.42-17,326,638.78

Finding the Fourth Proportional to 30,378,165.54, 41,922,606.42 and 17,326,638.78

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Solution

The fourth proportional to 30,378,165.54, 41,922,606.42 and 17,326,638.78 is: 23,911,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378,165.54 : 41,922,606.42 = 17,326,638.78 : x
  2. Step 2: Convert to fraction form
    30,378,165.54/41,922,606.42 = 17,326,638.78/x
  3. Step 3: Cross multiply
    30,378,165.54x = 41,922,606.42 × 17,326,638.78
  4. Step 4: Simplify right side
    30,378,165.54x = 726,377,858,155,449
  5. Step 5: Solve for x
    x = 726,377,858,155,449/30,378,165.54
  6. Step 6: Final answer
    x = 23,911,182.43

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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.