Home / 91,780,917.38-137,630,976.72-48,640,013.24

Finding the Fourth Proportional to 91,780,917.38, 137,630,976.72 and 48,640,013.24

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Solution

The fourth proportional to 91,780,917.38, 137,630,976.72 and 48,640,013.24 is: 72,938,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,780,917.38 : 137,630,976.72 = 48,640,013.24 : x
  2. Step 2: Convert to fraction form
    91,780,917.38/137,630,976.72 = 48,640,013.24/x
  3. Step 3: Cross multiply
    91,780,917.38x = 137,630,976.72 × 48,640,013.24
  4. Step 4: Simplify right side
    91,780,917.38x = 6,694,372,529,894,932
  5. Step 5: Solve for x
    x = 6,694,372,529,894,932/91,780,917.38
  6. Step 6: Final answer
    x = 72,938,609.91

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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.