Home / 165,464,845.27-247,874,379.72-128,902,036.57

Finding the Fourth Proportional to 165,464,845.27, 247,874,379.72 and 128,902,036.57

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Solution

The fourth proportional to 165,464,845.27, 247,874,379.72 and 128,902,036.57 is: 193,101,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,464,845.27 : 247,874,379.72 = 128,902,036.57 : x
  2. Step 2: Convert to fraction form
    165,464,845.27/247,874,379.72 = 128,902,036.57/x
  3. Step 3: Cross multiply
    165,464,845.27x = 247,874,379.72 × 128,902,036.57
  4. Step 4: Simplify right side
    165,464,845.27x = 31,951,512,359,433,504
  5. Step 5: Solve for x
    x = 31,951,512,359,433,504/165,464,845.27
  6. Step 6: Final answer
    x = 193,101,515.35

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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.