Home / 7,170,221.70-9,894,777.84-3,907,064.61

Finding the Fourth Proportional to 7,170,221.70, 9,894,777.84 and 3,907,064.61

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Solution

The fourth proportional to 7,170,221.70, 9,894,777.84 and 3,907,064.61 is: 5,391,679.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170,221.70 : 9,894,777.84 = 3,907,064.61 : x
  2. Step 2: Convert to fraction form
    7,170,221.70/9,894,777.84 = 3,907,064.61/x
  3. Step 3: Cross multiply
    7,170,221.70x = 9,894,777.84 × 3,907,064.61
  4. Step 4: Simplify right side
    7,170,221.70x = 38,659,536,322,476.24
  5. Step 5: Solve for x
    x = 38,659,536,322,476.24/7,170,221.70
  6. Step 6: Final answer
    x = 5,391,679.36

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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.