Home / 135,328,956.33-186,721,951.31-76,591,621.43

Finding the Fourth Proportional to 135,328,956.33, 186,721,951.31 and 76,591,621.43

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Solution

The fourth proportional to 135,328,956.33, 186,721,951.31 and 76,591,621.43 is: 105,678,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,328,956.33 : 186,721,951.31 = 76,591,621.43 : x
  2. Step 2: Convert to fraction form
    135,328,956.33/186,721,951.31 = 76,591,621.43/x
  3. Step 3: Cross multiply
    135,328,956.33x = 186,721,951.31 × 76,591,621.43
  4. Step 4: Simplify right side
    135,328,956.33x = 14,301,337,007,879,206
  5. Step 5: Solve for x
    x = 14,301,337,007,879,206/135,328,956.33
  6. Step 6: Final answer
    x = 105,678,321.89

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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.