Home / 7,170,223.74-9,894,783.09-3,907,064.82

Finding the Fourth Proportional to 7,170,223.74, 9,894,783.09 and 3,907,064.82

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Solution

The fourth proportional to 7,170,223.74, 9,894,783.09 and 3,907,064.82 is: 5,391,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170,223.74 : 9,894,783.09 = 3,907,064.82 : x
  2. Step 2: Convert to fraction form
    7,170,223.74/9,894,783.09 = 3,907,064.82/x
  3. Step 3: Cross multiply
    7,170,223.74x = 9,894,783.09 × 3,907,064.82
  4. Step 4: Simplify right side
    7,170,223.74x = 38,659,558,912,469.89
  5. Step 5: Solve for x
    x = 38,659,558,912,469.89/7,170,223.74
  6. Step 6: Final answer
    x = 5,391,680.97

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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.